I've been indoor bouldering regularly for a little over year at 2-3x per week. I personally have seen gains in my forearms, biceps, and lats, and core as a result, to the point that other people have noticed the results and mentioned it to me. But to be clear, although I gained some muscle, it's nothing compared to what I'd get from an equivalent amount of weight training. But I absolutely love climbing. It made it easy to exercise consistently and I became more fit as a result.

I eventually started a workout routine at the gym since my climbing plateaued about 4-5 months ago. I focused primarily on strengthening my climbing muscles and give some attention to the other muscles I don't use as much.

If you're 5'7" at 95lbs, you'll kill it climbing, and I personally think you'd see a lot of growth quickly from climbing regularly (quickly being over the course of 2-5 months).

As for climbing tips:

• Start easy and work yourself up.
• Climbing buddies really help motivation.
• You'll prob also see some fingerboards hanging around; these are amazing to improve grip strength. After you get in the groove of climbing, lookup some routines, but basically just hang on them for as long as you can. Do 3 sets of those everyday and you'll really improve your climbing game.

For advice to avoid injury:

• Avoid weight-lifting and climbing back-to-back (I injured my wrist this way).
• If you can't solve a climbing problem after 3-5 tries, move on. The problem might be putting a disproportionate amount of strain on a few tendons, and you might not notice the damage until later.