DISLCLAIMER: I'm making this up and it's based on my experience only. I probably don't really know what I'm talking about. (You may have suspected as much)
A few years back I was doodling during a meeting and noticed that the little nebbishes were all frowning, scowling, and all wore doleful expressions. I felt like they looked. I decided to draw a page full of smiling people to see if my own mood would improve. It did a bit, so I came up with the outlandish claim that drawing "against the tide" of your mood might be good for you.
Whatever your drawing expertise, you might try drawing little smileys and see what it does for you. I'd be curious to find out.