I want to get cured, I absolutely hate being a vampire. It svcks; I can't interact with anybody. I can't even get cured by Falion because he attacks me on sight. And when I go into Morthal town at midnight to try to feed on someone, even when invisible, they attack me. I sneaked into someone's unlocked house at midnight in Morthal while invisible and they woke up and still attacked me. I go to crypts and dungeons and everybody there is all awake and attacks me. What the hell am I suppose to do?! (apart from using the console to get rid of it) Why can't I feed on animals? And why do they only have to be asleep to feed on them? That's stupid. I should be able to feed on them after I've killed them or while I'm attacking them.

Everybody wakes up everywhere I go; farmers, barracks,everywhere.

Are you using any mods?

Yeah, frostfall and wet and cold and stuff. No vampire mods. I hate being a vampire; never had any interest whatsoever with vampires and don't want to be one now. Had I know I could have used cure disease potion right away I would have done that.

So I looked on youtube and found the jarl's longhouse in Falkreath is one of the few rare places to go.

So now I go to Falion in morthal, start that quest, and he gives me this black soul gem to fill. My character is a hunter and never uses magic ever. So how can I complete this quest without using magic?

Open the console

player.additem 2E504 1

That will give you a filled black soul gem to hand in. That's the only way I can think of doing it without magic.

Just use a bow that's enchanted with Soul Trap and kill a person. If you are using an enchanted weapon, it's not like using magic, just a tool.

And btw. you can cure vampirising via a Cure Disease potion in pretty much every TES game. Is Skyrim your first TES game?

Do you have Dawnguard installed? If you do no one should be attacking you, they only attack you at stage 4 vampirism if you don't have Dawnguard. Anyways, you have to feed on people while they sleep, and your sneak has to be fairly decent so you don't get caught when you sneak in. With Dawnguard they added a spell Vampire's Seduction that lets you use it on a person and feed on them, but again it is useless since no one attacks you if you have Dawnguard installed.

Also worth mentioning that from time to time ready filled black soul gems show up as loot on necromancer/ conjourer types, but that could take a while!