Obsessions

It is 3:30 in the morning and I should definitely have been sound a sleep a while ago, but I gave into one of my obsessions. I lie here in bed thinking why can't I just do what is right for me sometimes. When I get on a hook of something I have to have it, I am addicted so many things. It is really very frustrating having so many things that I obsess over all of the time, it makes my mind constantly wander into these obsessions. For instance, this coffee that is keeping me up right now. It is not the caffeine that makes me need coffee, it is the fact that I should not have it that I want to have it. It does weird things to me like makes my heart feel like it is going to jump out of me while I am trying to sleep and makes me kind of feel a little funky all day. So then, why not just give it up? I did and I felt great, but then I start obsessively thinking I can't have it and want it more and cannot repress myself from the habit. Then it ends up making me sick because I cannot sleep, but I will just have it compulsively without thinking-- I will make it or buy it and think that now I really have to have it cause I can't waste money. There are a lot of habits I have like this... I cannot stop twirling my hair and it actually become a huge distraction. I twirl it and the more I want to stop the more I do it. Some with food... the more I tell myself I should not eat something the more I want that thing or I will think about a food all day until I have it. Same for exercise... I like to workout in the morning because I will think about working out and it will eat at me all day until I workout even if I am feeling sick or am hurting that day. How do I stop thinking about all of these pointless things all of the time so I can focus on real things in life? Sometimes I just stand there staring, contemplating all of these things that I know I should not do, but constantly think about while twirling my hair. Wow writing this done really makes me feel like this is a problem, I mean I know its a problem. It really overwhelms my life. Do I have obsessive compulsive disorder? I would look up symptoms online, but I had to give up googling my symptoms to different things because I think I am a hypochondriac. I am scared. I want to put an end to this, maybe I should see a therapist.