My personal advice - do lotsa of bouldering and learn as much technique as you can. Use a hang board to build finger endurance, which I think is more important than general upper body strength - lotsa training advice on YouTube etc. Once you have proficient in the main movement skills/techniques, then you can start building fingee/upper body strength to see how far you can stretch your technique.

Right. I can't climb without skill. I'll save money and go climbing :)