Marriage Sucks!

I think part of my problem is that I just really don't like being married. I have been married for almost three years now. I've questioned my decision for at least two and a half of them. Since then, there aren't many days that go by where I don't imagine what my life would be like right now if I were still single. I can't help but think I'd be much happier. The thing is, though, that I can't tell anymore if it's marriage or just being married to my wife that makes me want to bash my head through a brick wall. Basically, I can't tell if it's me or us. Am I just unwilling to change and adjust to married life? Or is this a case of not being compatible with my wife? I have already changed a lot (probably too much) in an attempt to make this work, so I can't help but think that's not the problem. Of course, how quickly we decided to marry probably didn't help much, either. Anyway, this whole thing depresses me because I really dislike being married, but I also really don't want to be divorced.