3:28 PM, Sunday March 6th 2022
Yes, you should continue revisiting all of the previous exercises, the amount depends on how long it takes you to draw a box, so instead of focusing on the amount try to focus more on the time, remember that a warmup should take you around 10-15 minutes. Ideally you want to pick up 3 exercises and do them for 5 min each, so try to stick to that. Hopefully that clears your doubts, good luck