For anyone who's interested in how I got on, I managed to do Left Wall Traverse yesterday.
Followed my training plan initially but then lost touch with the AnCap, AeroPow etc. sessions and just trained strength for a few weeks towards the end. Also lost 9 pounds and only did 2 sessions a week red pointing and nothing else for the last 2 weeks. Extra rest and weight loss seemed to help quite a bit!
Cheers everyone for the helpful posts on here.
Anyway, here's a video: