I have bipolar disorder, and i don't struggle with work too much, I love to work and be busy even though my job is well crap, I find I'm worse off when I don't have something to do like work or school, it spins me into a depression, granted work is hard when I'm on a low, or in a manic state and getting irritable, and I loose my temper and snap at people, but overall I handle my job, the work environment, and my co-workers pretty well. As for the writing thing, I am a in the literary scene myself and he has some realities to face, he has to eat, he has to have money to purchase the material to write on or print it on, and it gets expensive mailing of manuscripts to various publishing companies. You can't write in a cardboard box or when your hungry. It takes years and years of effort and try to get published, (not to be discouraging) but it's realities he needs to face, the ideas he has sound a bit manic like, and I would encourage you to encourage him to keep his regular dr's appointments and stay on his meds

Best Wishes
Typo