I used to go roller skating with my dad every Saturday.
He was really freaking good. This dorky accountant skating backwards and stuff. I learned how to go really fast but I was only ever able to stop by crashing into things. The "crashing into things" method of stopping, I also used when roller skating on pavement which is much, much, much harder than in a rink.
Wear elbow pads, and fall onto them. If you fall on your hands you might break your wrist.
I hear Big Wheels are making a comeback in Brooklyn.