Please help me recover my life

My name is Jaime Schaefer. 4 years ago I had the life I always wanted. I was successfully self employed, I was madly in love, and my health was better than it should have been seeing as how I have both Lupus and Fibromyalgia. Then my brain broke. Last year I was diagnosed as having schitzo-effective disorder, a non-genetic form of schitzophrenia. I had lost my business, was homeless, and had zero people I could call a friend.
Now I am on medication that keeps the worst of the symptoms at Bay. I recently got an apartment (I don't use any government programs, I pay for everything myself), I am holding down a job, and my boyfriend and I are slowly working things out. The problem is that I am miserable.
I am barely holding on at work. I am the only female roofer at the company I work for, and have been harassed, discriminated against, and somehow become the punchline of many jokes and lies. I don't know what more I can do, and I struggle each day to make it through without quitting. My medications slow down my thought process and reaction times. While the voices are gone, the trade off is appearing slow and addlebrained.
My dream is to quit my job and go back into business for myself where if I have a bad day, I won't have to worry bout being fired. There was a time I could have just quit my job and done it all on my own. Unfortunately, with my medical bills, rent, and living expenses I can't be as bold as I used to be. Any lapse in my meds could easily land me back into delusions and the homeless shelter I left late last year.
My business model is simple. I make furniture and sell the pieces. I also do home organization (like making garage workshops or closet organization). The main thing that is new to my dream is that as business gets better, I'd like to hire help from the homeless shelter I lived in, especially other people with schizophrenia.