Ideas for cheap hobbies?

I'm tired of not doing anything besides school. I used to draw and write, but those things require creativity, which is impossible when I'm depressed. I also don't have much money, so I can't take lessons or anything like that. Here's what I could come up with

• Exercise
• Programming (currently dipping my toes into Android java)
• Crochet/Knitting
• Reading (about what, though? .__.)
• TV/Movies

Suggestions?