Do I ever! If you need some help with it, I'd be willing to help. I'll admit I'm clumsy and suck at sports, but here's something I don't suck at. I'm not pro either, but I don't fall a lot. I think it helped that I did ice skating when I was very young, but stopped after we moved, but my friends seem to think that's how I keep my sense of balance. I actually tried it before when I was younger, but couldn't get used to the bumpiness of the road, so I stopped doing it. Later, I watched some people rollerblading, and then realized in terms of physics how it worked--my cousin's friend was trying to learn to rollerskate, but couldn't do it because he was trying to rollerskate by "walking", so he ended up sliding his skates back and forth not getting anywhere. Then I watched some other people glide along smoothly--so how is it that this one guy is sliding his skates back and forth and not getting anywhere, while everyone else is gliding along and having some fun? I realized it was because of rolling friction. Sliding a skate along the road just succeeds in getting one foot ahead, like in walking, but when you try to move your other skate, rolling friction works again, and you slide back. So how do you deal with that? Everyone else I watched had their skate PERPENDICULAR to the other skate, and used the other type of friction to prevent themselves from moving backwards! Then all you do is push yourself in the direction of the other skate, and glide! Then just alternate and repeat! The guy who was tryiing to rollerskate eventually gave up, so I asked my cousin if she would let me try the skates for awhile, and she let me. My theory worked! I was so overjoyed. I think it also helped that the road we were practicing on was particularly smooth. Getting used to rougher roads takes awhile, but going over them faster helps, as it does on rainier days (not recommended though) because there's less friction.
Stopping and slowing down takes some time to learn. You could just use the brakes built into your skate, but I prefer to use the friction from one perpendicular skate to do that because I'm more used to it. The worst problem with rollerblading is falling over backwards. It's very awkward and hard to maintain your balance with.
I don't rollerskate for tricks, though I occasionaly jump curbs, depending on how many cars are on the streets. I mostly rollerskate for speed.
I'm still trying to figure out why it's harder to do ice skating than rollerblading. It seems my skates wobble on the ice.