Lee, your video you posted on
Lee, your video you posted on BROL looks like you are doing pretty well. Sounds more like bike fit and adjustment have been complicating your riding lessons.
On my Vendetta, I spent a good bit of effort sitting in it without wheels on the carpet experimenting a bunch with adjusting fit and checking clearances before I ever added the components.
When I actually started riding it this resulted in having to make only relatively minor adjustments but it still took some experimenting to find the best fit to my body. I tried to do like John Tolhurst has mentioned and did smaller, shorter rides at first "listening" to my body where it felt uncomfortable and checked to see if it was a fit issue or just using different muscles.
In some cases I found adjusting fit immediately felt better. In others it seemed more of a issue with using some muscles differently. It is a bit tricky and can be subtle to detect.
When I first test rode a Silvio, it scared the dickens out of me and there were several whups, quick foot down and near hand down to catch myself - I was being extra careful since I was test riding a seller's bike. In my own case, I found that if I relaxed and just went for it so-to-speak I did much better than when I was concentrating too hard and anticipating trouble. Disclaimer - I was a competitive gymnast and springboard diver in my younger days so I may be more acclimated to weird balance and gyration issues than others.
-Eric