Over the span of just the last 3 years, I dabbled in programming, game design, photoshop, graphic design, flash animation, pixel art, flash pixel art loops, music production, website design, website building, server maintenance, writing, lewd writing, language learning, history, art history, hiking, biking, jogging and gasp even social interactions.
Every time I get flared up for a couple of weeks or so, make some good progress and then get tired of it and forget about it. My quest for self-improvement will probably remain unfulfilled.