I have a 7 year old horse named Krissy. I bought her from a trail riding company that was going out of business. We are working on a few things. First of course is going out riding alone. She was never the lead horse on the trails and never went out with just her. So that's taking some time to get her used to. (its going really slow tho) Second thing is it seems like she doesn't understand how to turn when in saddle. I pull the rein to the right or left and some times she just starts to back up. I'm kind of lost what to do when she just starts to just back up. I understand maybe she doesn't get what i'm asking. But I think our main problem is walking forward. I can get her to walk forward (sometimes , other times she walks backward) but I get her to walk forward but she walks forward for maybe 5-10 steps then stops like ok was that enough? My trainer has me carry a crop whip just to tap her on the butt if she doesn't listen to my legs when I want her to move forward. When i'm not in the saddle she will let me lead her everywhere (even away from the other horse) I know she has trust in me (at least when I'm leading her she does) I have had a vet out to look at her teeth because I was worried that she drops some much grain but her teeth are fine just a messy eater. Oh also I have check her tack to make sure it all fits right and it does.
I guess my questions are...
1. Any tips on getting my horse used to riding alone?
2. Why does she keep backing up? And what to do when she does?
3. Is she not understanding what I want her to do?
4. Why does she stop every few steps?
5. Could all of these problems be because she doesn't like or not used to being rode alone?
Any tips or tricks will be helpful. I do have a trainer who is working with me and my horse but I would like to know other thoughts. Thank you! I added a few pictures of her.