Before working out, set yourself a timer to climb on the 60 degree wall for 15-20 minutes (including rests). Try climbing a lap on the wall then take a 1-2 minute rest and repeat. If you feel comfortable on the 60, challenge yourself by only using small footholds for feet.
After your session on the 60, do this longer circuit training to help focus on endurance and strength training.
Do each exercise 4x each for 20 seconds.