My RS have sold the only horse I feel I have any confidence on. I have ridden 2 others there but find them too unpredictable and difficult to control. They have bought a new horse to replace my fave but it's a lot smaller and doesn't look big boned enough to carry me hefty self about. I am so upset and feel very negative. Had a lesson today on one of unpredictables but felt so out of balance I got off. No riding for me today. What would you guys do?