I've also wanted to feel more comfortable on a motorcycle Anxo-although in my case I liked to be on the back of someone else's bike! Always have felt awkward (but good) as a guy when doing this.
For what it's worth, I've known couple of females who really pull off the bike thing on their own, usually backed up by their rep as long-time riders.
May you soon feel good riding in whatever mode or role you choose!