You still have the ability to draw. It didn’t go anywhere. In fact, it’s become a stereotype that artists must suffer for their art and many of the great writers and painters had depression so that isn’t really a hinderance. Your block is purely psychosomatic.
In my opinion, if you’re going to make a general request like this, the better phrasing should be something like, “Raphael, I ask you to help me to remain in good heath, preserve my vitality, and make me resistant to the stresses of life.”
If you feel the depression really interferes with your creativity and you don’t want to try harnessing it for your art, call the archangel Zuriel. Raphael is a powerhouse when it comes to physical healing, but Zuriel specializes in healing mental illnesses like depression, according to Jareth Tempest’s book Archangel Pathworkings.