I've just got a horse on a part loan/share agreement after returning to riding after a couple of years. I've been riding for 15 years on and off but don't consider myself a great rider at all as I'm very rusty! When I canter I keep losing my stirrups, is this just because of me needing a few lessons to brush up again? I feel comfortable but notice that my knees flap around abit when trotting too. I've booked a lesson for next week to get me started and will probably find myself going back to basics! Any advice for gaining a more balanced seat and better leg/foot control would be greatly appreciated!