Push your hands into their mane for a stride after the jump and stay in a 2 point for that time. This will also help them to recover after the jump!
Relax and try to stay and there with him/her
Bend at the waist and don't over do your two-point.
Just relax and move with the horse, I know it's easier said than done but let them close your hip angle. Have fun jumping!!😊😊
You could try grabbing a bit of the mane to get your half seat/ 2 point over the jump. Make sure to squeeze and keep your legs and heels tight over the jump
Shoulders back & weight in heels
Until you have the centered balance to not be thrown forward on your horse, I'd say never feel amatureish for pressing your hands on the horse's neck, or grabbing mane over the jumps until you stop getting thrown forward. I had to break my pride and grab mane when my trainer first started cranking up the jumps two years ago :)
When you go over the fence, try locking your elbows. It keeps you from falling forward. Also, really try to keep your shoulders back and really drop your heels right before the fence. This helps keep your upper body stay upright. Hope this helps!
Usually if you horse jumps quite big over the jumps and you're not used it to then, you need learn to balance and use your stomachs muscles over the jump. To strengthen your stomachs muscles you should work a lot with out using stirrups. Another thing is, putting a grid out and work your your position.
If you really sit up before and during the jump, you will be a lot more stable on the landing even if it is hard or awkward! Hope this help!!
You can try holding on to the mane
Most of the time when a rider falls on the horse's neck after jumping is that either he holds his reins toot tight and doesn't follow the horse's jump or that the horse made a too big jump.
In the first case, you have to be half seat to jump and when the horse starts to jump your hands have too follow his mouth movement. Don't look down, keep your eyes focused ahead or on the next fence. To begin you can hold the horse's mane or a collar you put on the neck.
In the second case, if the horse made a too big jump it's probably because the stride he took wasn't the good one or he didn't have enough impulsion.
To lead properly a horse to a jump, you must have a great impulsion until the last moment and keep your rein tight enough.