I pretty much do, now I struggle to eat red meat (my body doesn't tolerate it as it used to)>

So does cooking your food. I would personally suggest simply not utilizing raw fish in your home cooking and if you do, I would buy pre-frozen sushi grade fish instead of freezing the fish yourself (for the reasons previously stated). Also worth noting, the FDA recommends freezing below -20C for seven days if killing parasites is your goal, which may be lower than your home freezer.

Keep in mind I am 5 feet 95 pounds. I have tried to gain weight before to no avail. At this point I just want to eat healthy and maintain. I have never had cholesterol issues. Worst i've had is sodium (salt), magnesium, and potassium deficiencies from time to time.

I eat 2 meals, lunch and dinner, and 2 supplementals, yogurt or fruit for breakfast and some extra whatever fancies me (but small) two hours before I go to bed.

I eat chicken as my primary meat, supplemented with beef, tuna, salmon, and sometimes shrimp in a salad, in some form or another once or twice a weak. I hardly ever have a salad as the primary part of the meal.

"Breakfast":
Very small glass of yogurt.
Nothing.
Small bowl of canned tropical fruit.

Meals are (but not limited to):
Meatloaf w/ steamed green squash and some side (mashed potatoes and light gravy, packaged scalloped potatoes, etc).
Eggs over easy w/ toast (very light small meal if i'm especially not hungry).
Biscuits and gravy (sausage, pees and chicken).
Salmon w/ garlic on top w/ a side.
Tuna noodle casserole.
No frills chicken sandwich Mayo, chicken, bread w/ maybe some extra salt depending on the chicken.
Tuna sandwich.
There are some TV dinners in the mix, once or twice a week max. Usually something simple like chicken pot pie or some other very simple single item meal like chicken alfredo. Did I mention chicken is my main meat source?
I do try to have a healthy amount of veggies interspersed, nothing drastic. Whether that means I have a very small salad with some cucumbers as a side, or steamed squash as a side, or a salad as the entire meal w/ either chicken, salmon, or shrimp as the filler.
Chicken over rice w/ either gravy or teriyaki.
Some form of soup (split pea, tomato, chicken noodle).

Midnight snacks include (but not limited to):
Combo celery, carrots, cucumbers w/ ranch.
Cup o' noodles.
nothing.
Random leftovers.
California rolls (pre-bought that day) because I felt like it.

3000mg salt max per day. 2500 is a goodish target to budget for. Does depend on your body, like mine which for whatever reason still end up with a salt deficiency sometimes using that range.

I really don't do junk food anymore nor sweets (unless you count the rare iced coffee).

Also keep in mind I do not stock up more than two weeks of food at a time, and usually is 1 week or less at a time.

What country are you in? If you have Taco Bell nearby, it sounds like American... Do you have an Aldi's nearby? I'd go there and challenge-shop. Go to AllRecipes.com or another food website (Pinterest is another one), and learn to make copycat meals. Create a spice pantry. You could easily make knock-off Taco Bell meals for half the price, and way healthier. You could make Chipotle-style food for Taco Bell-level prices. Its easy, tasty, way better for you, and cheaper.

If you're not confident with cooking skills (which really are as easy as following directions to a T), just buy some cheap Ramen noodles and add things that sound good. Egg is great, so is chilli sauce. I usually do peppers+onion+egg+soy sauce, and that's an incredible 65-cent meal.

Seafood is the healthiest source of animal proteins, particularly for the circulatory system, as it's often low in fat and its fat, even when abundant, has the recommended composition for human health.

It depends on how you cook it. The whole fish needs to reach a temperature of 65ºC enough time to be safe, so cooking it on a grill or a griddle won't do.

If you have a freezer suited to freeze fresh food (four-star), like most people do, freezing the fish by yourself before cooking it is safer than just cooking it.

The required temperature for cooking is lower than what is required for most other meats, so there really shouldn't be a problem with pretty much any cooking method.

As for the freezer, a typical freezer is set to 0F which is a bit higher than the FDA recommends and again, freezing in a home freezer will harm the texture of the fish. If you are paranoid about parasites, don't buy fresh. Overall, is it safer to freeze fresh fish beforehand? Sure, but its safer to eat well done meat than medium meat. Either way, if you are cooking your fish correctly there shouldn't be a problem if you don't freeze it. Buy a meat thermometer if you aren't sure how long to cook your meats/fish.

I can't recommend freezing your fresh fish in your home freezer under pretty much any circumstance. Again, if you aren't planning on cooking the fish to the recommended temperature or you plan to store it, buy frozen (and even if you aren't, you should probably buy frozen).

This. Also, making sushi by myself, I can use the right dose of fish and rice for a balanced diet. Sushi is also perfect for me because I'm not very good at cooking fish alone, I can cook it well for risotto, sauces for pasta, battered or breaded deep frying and stir frying with vegetables, I can also make a good mussel soup, but I suck at roasting or grilling fish. About shellfish, some, as shrimps, lobsters, clams and mussels, are better cooked, but some others, like oysters, are far better raw. And as much as I love cooked scampi, raw ones are even better, particularly if they have eggs, that raw are as good as caviar, maybe even more.

I would have suggested Horse meat as that one is pretty lean, tasty, very low cholesterol and not full of antibiotics, but as far as I know that's banned in the US.

Ostrich meat is also pretty good, and even less fat than chicken or turkey even though it looks much more like beef. It's just a bit tougher to chew.

While eating primarily meat is recommended. cutting out veggies and fruits is not recommended. Any meat is good. Just avoid high fatty ones. Have well done always. I know with steaks is common to eat it rare but its not the best for you. Im not into sushi so I cant say I know, but Im guessing the same rules as steak apply and try to avoid it. And like everybody said, avoid fast foods. Even salads at these fast food chains are horrible for you. Home cook as much as you can and if you dont know, learn some simple recipes. I would recommend oven roasted and other slow cookers. Its so easy to slow cook that anybody can follow those recipes to a letter. Its not just easy, but if fat is an issue for you, most of it melts off the meat at low temp and the makes the meat tender and delicious.