So as far as a diagnosis goes, I have Bipolar 2 disorder and major depressive disorder

Now I have several problems that need addressing, the first being I am unable to let things go that should have been let go a long time ago. Whenever some one/thing does me wrong I dwell on it for sometimes WEEKS... YEARS EVEN. I can not distract myself with other thoughts, nor can I simply forgive or forget what has happened. I would love to simply forget about those wrongdoings because they lead to frustration.

Now when I get frustrated with something it feels like there is a cymbal monkey pounding away in my head causing the frustration to grow. It just bothers me more and more until I'm ready to snap.

Another thing that is bothering me is my lack of motivation. I try and pep talk myself everyday that I will finish my college homework or go to class even. I try just doing it.. but there is an invisible mental wall that prevents me from following through. and that leads to more frustration.

I am unsure how all of these things are tied together. But I am in desperate need for advice and a cure, I'm tired of being lazy and upset all day every day I want it to stop