It's possible that the Abilify and Wellbutrin are making things much worse, antipsychotics are known causes of anhedonia and Abilify can cause insomnia as well.
Get to another doctor and tell them everything that is going on. Drive yourself to another hospital if need be.
I really think you need some sleep and then you'll be able to think about this with much more clarity.
I hate to recommend benzos but people do have a lot of success with benzos for these issues, especially insomnia.
I slept 2 hours a night at the beginning, often skipping nights entirely, and things completely changed once I started sleeping better.
So many symptoms could be from the sleep deprivation and would get better if we could get you sleeping better.
Don't end it yet - you can still recover and live a full, happy life.