Can you please tell me specifically how to master the woman on top position? I feel like everyone else knows how to do it except me.

To get used to being on top don’t move too much. Straddle him on your knees, then slowly lower yourself onto him. Once he’s in and you’re sitting comfortably just rock your pelvis back and forward or round and round. You can sit upright or lean forward with your hands on his chest or shoulders. Once you’ve got the hang of that you can start moving yourself up and down the shaft of his penis. Squatting over him with your feet flat on the bed can make this easier. Once you’ve got the hang of that you can turn around and try all those moves facing his feet. The most important thing is that you experiment and do what feels good for you – he’ll love it!