I'm pretty intensely depressed, so I think I'd like to learn how to be a little less of that. I've tried so many things, but I guess there's always more. Thinking about getting a personal trainer, because I try to stay active, but have no idea how to actually work out. Seems like a good skill to learn, and should help somewhat with the crushing weight my brain seems to be in constantly.
The bigger hurdle is the intimidation of the gym. It doesn't help that the gym will be packed on January 1st. I deload every January to avoid the gym as much as possible in January. It will be back to normal by mid February. A new lifter would be so much better off waiting until March 1st to join.
Walking 30 minutes a day to get your cardio up will almost certainly help your brain chemicals improve after a few weeks and no new skills needed.