In my youth I went down the same path as you,I could ride bikes so thought I'd buy a jawa as good as I could afford thinking the better the bike the better I'd be.unfortunately the bike was way better than me!after a fair bit of practice at an unofficial track ( there was a fair few in the seventies) I managed to wreck the bike and get myself a few bruises! It ended my thoughts on becoming a rider and cost a fair amount of financial trouble including wrecking my dads car!
What I'm getting at is I wish I'd have attended training schools and got the hang of things first and gathered some experience and knowledge off people in the know.not sure if this is any help thought it might be useful to you