In reply to flopsicle:
Hi Flopsicle, I've achieved progression by using a hang board, specifically Beastmaker. I'd recommend a 1000 if you're just starting out this kind of training and really undertake a gentle intro to the board. It can be a bit dispiriting at first, starting on the lowest training rung on the accompanying app, but if you stick with it you'll get awesome strength.
Don't put it out in the garage where you won't really want to go, place it somewhere you'll want to train, like over a doorway with a good view of the telly. Get a good box set or Netflix, and get training! When you do get out, or go to the wall, try to concentrate on climbing open-handed.
Good luck!