The most important part of any recovery is the diagnosis, and now that you have a good explanation for your variable and unpredictable moods, modern medication can help wonderfully. Stick with it---often the first medication used is not the one that works in the end, mostly because we humans are all a bit different. There are a lot of people on this forum who will be willing and able to respond to your questions during the process.
Good luck, and may healing winds fill the sails of your ship of self.