I take the stress, anxiety, and mania and use it my advantage to get as much work done as possible. I'm just lucky that I work at night and most of the time I'm alone. If the boss was here to see the way I do things I don't think he would like it much. But when he comes to work in the morning and sees how much I get done he commends me.
My best suggestion would be to find a job that you enjoy enough that it doesn't stress you out and that you can be your own boss. My dream is to become a self-sufficient farm where its just me and my fields.