Here’s a thought experiment you might find helpful:

Assume, for this experiment, that becoming more mentally healthy definitely leads to being less artistic. You still make art, but it isn’t as good or profound as before.

Given that premise, would you forgo happiness for the sake of your art? Would you recommend others do the same? If you could offer Van Gogh advice, would you tell him to avoid help and embrace suffering so that he could produce nice paintings?