I feel ya man. Can't imagine what you're going through - and it may sound cliche but you really gotta fight, keep your chin up and stay strong. It will get better. You will feel better. And any particular "down" time just think of it like a storm that you will ride out, weather it and treat yourself well in the meantime b/c it will pass. If nothing else, even if it feels pointless or hopeless right now, just think that you're going on for your friends and family. For their happiness and well-being. Start with that and eventually you'll feel it's worth living for *yourself* as well.
I've never *seriously* considered it but I certainly have my days where I just feel utterly alone and in despair to the point of feeling like just going through the day is pointless. Particularly in this insane, ridiculous year where it seems like just about everything going on is designed to make me nuts, sad, and/or pissed.. It's an ugly feeling but on days or weeks (or sometimes even just hours) like this I just try to lay low, relax, treat myself, maybe put on a movie or show I really enjoy.
I try to take care of my mind and body - I work out (I really feel this is underrated in revitalizing both body and mind not to mention helping self-esteem), eat healthy, listen to an uplifting self-help, motivational, or spiritual audiobook/lecture/speech. Sometimes it's just a matter of going for a walk and taking in nature to clear the mind, listen to some relaxing/uplifting music, or just meditate. It may be watching a hilarious movie/TV/comic that makes me laugh. Sometimes it's a matter of getting in touch with an old friend or spending some time with family.
"We hold these truths to be self-evident - all men and women created by the, go-you know.. you know the thing!" - Joe Biden
