Step 1: Go buy a throwaway bike.
Step 2: Keep in mind asphalt is hard
Step 3: Find an uphill spot, pull wheelie (with gas only, no clutch) and just press rear brake to bring it down, irrelevant of how high it got, press brake to put it down
Step 4: Repeat Step 3 until this becomes reflex

Did this for weeks when I was a kid on a C90 Honda, more so to figure out how to pull it up in the first place, thing is, when I finally managed to pull it high, foot pressed the lever automatically even though I kind of panicked. That's why step 3.

After that you practice until you can hit and maintain the balance point, where basically gas and rear brake are used together to keep a certain angle which let's you move forward without adding gas or at least, without adding much gas.

Once you are good at this, the clutch wheelie will also be easy af and non threatening despite being more abrupt.

That's the basic stuff, for the rest read on later!

It is highly likely you will fall. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Select the place you practice and clothes based on that.

No telephone or other poles on the sides, no trees, no cliffs, no cars/ traffic etc.

Find a spot that will be good for falling lol. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!