As a person who ‘learnt’ (can it be learnt?) to climb on outdoor crags in the Yorkshire area, I’m not sure if indoor walls are the best place to hone technique. They are the turbo-trainer of climbing. Something to do when you can’t do your sport on the real stuff due to weather, light or location. A way of keeping the specific muscles in good shape (and meeting up with your climbing buddies for a chat). The best training for climbing is… climbing. So we do need indoor walls.
I recommend you try to find a quiet crag, put your sticky boots on and chalk bag on your belt and just move. Across, up, down. Concentrate on weight distribution, try not to overreach, keep moving, looking, thinking. Think ‘vertical ballet’. ‘Feel’ your way across the rock.
A crowded, noisy indoor wall is not the best place. But, if you can find a quiet wall on a midweek afternoon then do some unroped traversing.
A bit ‘wistful’ there, just remembering the climbing years, must return to it one day.