So long as you're alive, you can dig your way out of any funk that you happen to fall into. No matter what happens to you, no matter where you go in life, you can get through whatever life throws at you. That's something I learned when I was at my own worst a number of years ago.
That said, change is important in a person's life. If you can't continue Imperial Entanglements because it puts you in a bad headspace, by all means, stop doing the comic. The people who matter understand, and those who don't aren't worth your time.