First off- don’t beat yourself up for being nervous about fence height. It’s a common & reasonable fear. We don’t all bounce like we did at 12! Remember that you did jump higher & did it well. It’s ok to feel like you need to knock the rust off & rebuild your strength a bit before you go higher.
I had some height issues after a few falls & am just working back to 100% A few things that helped me were:
- Gradually building up the fence height of a couple jumps in a larger course so I had a rhythm & a few good fences before the “big” one
- Telling my trainer if a particular fence was my “boogey-man” and talking through the exact plan to ride it from the jump before until the jump after it. It helped me to have a plan & her to know that coming up to that jump a little more vocal support (just like that, good with your body, etc.) would be appreciated.
- Take the time to challenge yourself while getting bored. Go to a show at 2’6". Show fences always seem taller so those 2’6" classes will feel like 2’9" ft. If you normally do hunters, do a 2’6" jumper class just for the heck of it. If you do jumpers, find a hunter class. Ask your trainer for some really technical, challenging 2’6" courses. Add in a few higher fences in grids.
- Time off the horse in the gym. Core strength is key!
All that will make 2’9" a non-event and build confidence in your riding tool kit so when the jumps go up you’ll know you’ve jumped scarier looking, more complicated exercises well.