Lunging (useful lunging, especially) is a skill that need to be taught to the handler just as anything else would be taught to a rider. If you have not been taught to lunge properly, then see if you can find someone to give you lessons. So much of it is about body position and it could be that you are too far in front of her and so are sending her mixed signals.
Likewise, lunging is something that needs to be taught to the horse.
Before lunging, though, it sounds like you have bigger problems than that if the horse doesn’t even lead well, so that’s where I’d start my lessons - with basic ground work.
I’m the opposite of the poster above. I don’t want my horses to move before I do, want them to wait for me to move before I move. I don’t want my horses walking off without me. I want them following the movement of my steps - my rhythm and speed and direction. I want them to stop when I stop.
So decide how and when you want her to move and teach her accordingly. Does she give well to pressure? (She should.) Teach her to follow a feel - it all starts there. If this sounds foreign to you, get someone to help you.[/QUOTE]
Yes I stand and horse must walk before I do. This is a basic. In the end it is almost immediate and the click is between me and the horse so you would probably not see a difference.
They are taught to stand still.
You see a lot of beginners. Horses walk because they walk. Horse is happily following their feet. Beginner ties up horse. Beginner walks off horses go to follow. Suddenly not a happy horse or rider.
Once horse is down pat with moving on your signal no halter is required. They are listening to your sounds not feet or halter. You can be away from them or on a horse.
After going back with the thumb you teach back and a small tug on the tail or back and wave finger from side to side. Always 2 signals for back. You only want one horse to back out of a float at a time. Not 2.
So you walk to the ramp and stio. The horse should keep walking as you have not said hakt or click and Horse self loads. Tug on tail and say back. They self unload.
Walk to gate. Open it. Click. Horse walks through. Say halt. Horse halts. You close gate. Step to shoulder click and off you go.
Wave finger from side to side to move a horse on the other side of a gate so as you can go through the gate on the horse you are riding.
I did see a post on a forum from a girl who fell off a large horse. She fell off the left side. He stood on her left foot. A strange situation as horses dint normally do that and try their best not to stand on you. Most horses would move off. He had been taught not to move unless you walked first. She could not walk. She tried everything else to get him to move and nothing worked. She couldn’t push him off. I guess she asked him to pick up his hoof in that time. From memory I think she was stuck there for half an hour until someone saved her.