Hi Splexin,
I also think you should find some professional help. Only a psychiatrist can diagnose whether you truly have bipolar.
In meantime, maybe you'd like to try some Bach flower remedies? I'm not sure if I can post a link here cos I received a warning last time not to advertise when I wasn't even trying to. You can search the internet for info - just type in Bach flower remedies in google and you'll find many times with good info.
Bach's Rescue remedy can help calm you down so that you can think more clearly about your solutions.
Larch may be helpful if your issues are due to lack of self-confidence.
Mimulus is for fear of specific things.
Cherry Plum is for fear losing control over yourself.
Crap Apple if you have self-hatred.
If you have severe mood swings you may want to check your diet. Is it loaded with sugar and caffeine (in coffee and coke)? These foods can cause a sudden surge in blood sugar which gives you a very high mood but you feel like you're in the pits once the blood sugar drops - pretty much like taking a roller coaster ride in your head.
Hope this helps.
Rgds