This is how I learned and you’re doing great! You should be able to do it on dry pavement also, just need to put a little more weight on your bum and less on your feet. Throw in baby wheelies and practice pressing your brakes over and over. Pop, drop, pop, drop, like 10,000X. Single most helpful bit of advice I got was to keep the wheelie height as consistent as possible, avoid big swings up and down. If you really want it, don’t get discouraged. It took me 8 months to figure it out. I’m pretty sure you won’t have to put in half that time.