"i just wasted an hour and i am at the same checkpoint". i posted almost exactly the same thing when i first stated just a few months ago. so dont worry, that hour isnt really wasted, its just you getting along with the game and understanding it more, getting better at it.
The trick is to find short cuts, see these gates that are closed? you have to find a way (by exploring) to get to the other side and open them. once you do that, you can get to reach places faster and not have to fight hordes of enemies.
you cant upgrade your character level until you meet the first boss. you dont have to beat him, you just have to meet him, if you lose its okay. once at the Hunters Dream, you will see a female character, "The Doll". you can upgrade your skills when you talk to her.
You can upgrade using bloodEchos, currency you gain once you kill an enemy, each enemy gives a different amount of blood echos. if you die, you will lose your blood echos, you can go get them back by going to the same location you died at, you will either find them on the ground, they look like a red stain on the ground, with a purple light coming out from them, or the enemy who killed you or an enemy near by, will have them, their eyes will be glowing purple, that way you can identify them. to gain them back, you must kill that enemy.
if you lost your bloodechos, you only have one chance to gain them back, if you die again, you lost them for ever.
My advice, gain enough blood echos, and go upgrade your weapon, since you cant upgrade your skill yet. and keep exploring, try memorizing the way you go, and memorizing the map. when facing a new enemy, dont go crazy on them right away, see how they fight and try to find a way to counter/dodge and hit at the right moment.
if you have any questions feel free to ask. also, the game at the start is the hardest, once you get the hang of it it will become easier.