Have you checked out The Zen Of Roller Skating? They offer different exercises for balance when roller skating, and this may help someone like you with only one leg!
Oh my gosh. I haven't, but it sounds amazing! I struggled for so long using just a crutch with a wheel on the bottom of it. I'm really interested in The Zen of Roller Skating! 
You should check it out! It's a website with all sorts of information that can help with technique and such.
I'm definitely going to check it out. Luckily, over the years I've gotten much better. Sometimes when my leg gets tired I will actually rollerskate with the skates on my hands and just do a handstand.
You must have tremendous upper body strength! Many people have to go through multi-step programs to develop the necessary strength for a handstand.
Thank you! I've definitely learned to compensate over the years! I recently found this great Facebook group for one-legged roller skaters where we all get together every Tuesday and skate!
How many people are in your group? Is it all local?
It's roughly 40 people, so 20 legs in total! Surprisingly there aren't a ton of us locally, so we come from all different regions of the southern end of my state to unite!
Have you considered entering a competition? USA Roller Sports offers competitions in a variety of skating disciplines, including figure and speed!
That's a life-long dream for me! I would love to share my love for rollerskating and show everyone out there who may have 1 leg that it is possible! The figure skating would be especially beautiful!