I can relate! I used to ride bareback when I was a kid ALL the time- and a million miles an hour at that! As an adult "re-rider"- not so much. My balance isn't worth a crap. The first time I cantered as an adult bareback, I did it on one of the trainer's (gaited) lesson horses. I was skeered so I chose the horse I knew would tolerate anything I did, lol. It was awesome! Then I cantered on a slightly more challenging (gaited) horse. Finally I made it to my own horse (NOT GAITED) and I have never been so happy to canter in my life, lol. It was much smoother than her trot and much easier to stay on.
I can also relate to hitting the dirt at a canter. I got flung off running barrels (no, not bareback) and landed on my face. That was big fun- NOT.