Hi, my name is Rob and I ride my bike prefered on one wheel.
A funny story - I do this since I am 10 years old and sometimes it hurts.
My schoolfriends brother was a little older and got a dirt bike brand GAS GAS.
Crazy guy - bought magazines like nuts and went trained like hell. I was always fascinated when he did the wheelies and the girls were flashed. Great feeling for him and I was sure about learning it myself and it worked out. Learning by doing but no personal trainer. Just watched and copied.
If you want to learn quickly it is helpful if you get the right instructions from a trainer.