Joined a gym some 5 months ago now specifically so I can get into bouldering. A friend showed me Adam Ondra's 'Silence' and that was it, I had my next life goal.
Still a long way off being fit enough yet I believe, despite never even having touched a wall. I just know I don't have the necessary strength in my arms and core to do a lot of the movements. I've managed to shift around a tone 12kgs (starting weight of 95 at 5"11) but still don't feel anywhere near strong enough.
Maybe I'm just making excuses though. There's a nice climbing gym literally on my route home... maybe I'll just head in there early in the new year...
You don't need to go to the gym, just get climbing.
Bouldering is an excellent full body workout. I just had to chuck out some t-shirts as they've got too tight across my chest from just bouldering for 18 months You'll learn quickly just by doing it, and watching others on the wall. As well as your muscle strength, your tendons and ligaments will toughen up, which takes a lot longer than muscles.
Get on the wall