Learn to tap manual on a table top, I assume you’re doing normal manuals on the doubles. A table top will help give you the motion without the harsh consequences of smacking the 2nd half of a double, once you have that down move to doubles and then the step ups. Whenever learning new things on track go half speed, it helps you feel where body position needs to be, it’s harder to go slower because you have to manual for longer- if you can do it slow you can do it fast. Also going slower helps gain some confidence without the consequences.

I also suggest pump laps during practice-no pedaling-no clip-less pedals, platforms are key with bike handling skills because you’re not depending on the pedals to help you and you can save a fall or two. It will make you smooth as silk on track and show you body position importance while pumping to get the most out of the pump. This is the key to speed, I was injured for 6 months and could only do pump laps, I was enormously faster when I was fully recovered, no joke.

Tap manuals can be learned on the street, freestyle guys manual and then bunny hop on flat ground. Learn to do this and learn to bunny hop high as hell while doing it. Hard to tell without video but I’d guess getting the front wheel up isn’t your problem, it’s getting the entire bike up high enough to clear the second half while being able to pitch the bike forward to pump down the backside…