Art is complicated. I want to improve, and so I have... but it's happening slowly. There are so many skills to work on, and so many media to explore. It's going to take time to get my lay of the land and find out what really works for my purposes.
It might help, then, to explore those purposes. There are, I think, only one or two ultimate goals for me. I want to design my own computer games, and in doing so I want my "programmer art" to be presentable enough to produce a finished product. I might also one day wish to illustrate my own children's books or something similar. It seems ambitious, but I don't see why it can't eventually happen.
That's it, really, except for the desire to enjoy the journey as I learn and improve. I refuse to work with media that I don't enjoy. It's just going to take some time to experiment and find out what I like to work with, and what I don't.
And so I've made a small commitment to do more sketching. To this end I've allocated my spare sketchbook to serve as a visual journal or a sketch diary of the kind suggested by Thaneeya on the art-is-fun website. It's a small step in a long journey, but I think it is both an important and a beneficial one.