I don't know if you're an alcoholic or not, but then I didn't know if I was an alcoholic when I eventually sought out help, and I drank everyday until I was blotto. I fell down in my house one time, so you can say I'm not a good judge of it. But I did need help and I sought it out and I quit drinking. So maybe knowing if you are or aren't is not as important as wanting to stop.
One definition I've heard of alcoholic is a person who can't stop once he starts. None of these definitions are definitive, but if you can't stop, I would say there is a problem there.
It's good to have you here. If it turns out there is nothing wrong with you, there's nothing lost in hanging out here for a while and participating.