I don't have a disability, but I still have my own demons I struggle with. I drew alot in highschool and college, and those were some of the happiest and most carefree times in my life. Then a week after I came home from college, my dad passed away, his evil business partner stole hundreds of thousands of dollars from his company (and stole a truck from the company), left my mom's life in ruins, bankrupted us (the Fed drained both my mom's and my bank accounts and life savings), we filed for bankruptcy, lost our house to foreclosure, were homeless for a short span, my mom was diagnosed with Parkingsons Disease.... it goes on and on for like a year.
I also got married that year and had a wonderful husband who picked up the pieces despite having a disability himself. He actually got me drawing comics as a way to cope with all the troubles in my life. Having something to work on, making goals, finishing each issue of the comic, making friends and working with Terri (the writer) really made life worth living and gave me something to look forward to.
Honestly, I look at making comics as an escape. When it becomes the cause of problems in my life that's when I have to walk away. Not to say I give up when comic making presents challenges (low readership, meeting deadlines, computer crashing, etc), but I always keep in mind that I'm working on my dream and this whole thing is suppose to bring me happiness. 