Hi Disenchanted,
Have you let the doctor know about your concerns? Has the double vision only just started recently? You definately need something for the mood swings. And maybe something for corrective vision. Did you have this growing up? I know that it is quite hard to deal with, but maybe glasses could help you.
I want to welcome you to the forum. I am not sure if you have posted before here or not. There are a lot of kind and compassionate people on here, that can really understand where you are coming from.
The anger issues are hard to deal with, but can be solved with medications and therapy. I would highly recommend both. Alos the obsessive thinking. You are needing to learn how to focus on the here and now. Stay in the moment. That really helps with anger and with obsessive thinking. You will be able to sleep better once you address this.
Best wishes to you, keep posting.
Hugs, ...Karen