I have been taking riding lessons since October. My biggest riding issue is lack of confidence. I've had a couple of uncomfortable situations, most recently a mare we purchased decided to start rearing while on a trail ride. Thankfully the gentleman we bought her from was true to his word, took her back and brought out another little mare he had for us to try. I am much more comfortable with her. I am really tired of hearing "you need to be more confident." I know I need to be more confident, but I just don't know how to get there. Does anyone have any advise that might be helpful? Thank you.