Don't cover characters with word bubbles. If it can't be avoided at least make sure nothing is in the way of their faces.
Don't let myself get stuck on a page redrawing the same panel over and over again, accept that sometimes I'm just going to have iffy panels, they're not all going to be perfect. Settling with it and moving on to the next task is far better than not moving on at all.
Don't let blue screens and other forms of data and progress loss stop me. Sure it sucks and will slow me down and sometimes I need a short break, but just get back to redoing the work as soon as possible and don't rage quit, despite how much it sucks it still needed to get done, the sooner it's done the sooner I can move back to progressing.
Be happy with what I am able to accomplish, take into account that I am crippled and because of my health cannot perform as well or as fast as other people, comparing myself to people who can do things outside of my physical limitations will only cause me to overlook everything I was able to accomplish despite it. My work is not the best and will never be the best, nor should I expect it ever will be, but it's still good, it's still MY accomplishment, and despite what it's lacking I am still happy with it.