Recommended Routine Question

Apologies for these questions but I did check the side bar and the recommended routine faq. I'm new to this.

For the handstand section do I start with a wall plank as part of my routine and only when I've mastered that progress to doing the wall handstand as part of my routine? The same question applies to the parallel bar routine. Do I do that until I'm good enough and then do the rings. So for example for the first while I just do the wall plank and parallel bar and then start the strength workout after that. Do I do the handstand or support section first?

For the strength work do I do each pair (All 3) every time I do the routine? Or just 1 of the 3 pairs each time?

Thanks for your patience and your advice. It's much appreciated!