To be fair, a sport psychologist will end up being expensive for the gain you get. From my own experience with them, they're not viable unless you plan on competing at higher levels and are already planning on getting top class lessons. I can't see the justification for the cost of a sports psychologist in this case, when a bit of time and practice and a trainer who knows what they're doing will achieve the same thing. By all means Alyssa, if you feel it will help, go for it but I've dealt with a few sports psychologists and learned a few techniques, and they are an expense.
Dear Alyssa, I don't agree with any of the others. This a a mental issue and you should look for help by an professional sport psychologist (does not have to be specialized to equestrian sports). There are serveral techniques to get over this cliff. E.g. breathing techniques and mental training. Many people in the higher classes do work with sport psychologist on a regular basis. Not only for resolving issues. Also for improving performance in competitions.
Start off doing smaller jumps at a trot and just do that over and over again until the horse realises that rushing to the next jump is not the right thing to do. Also if there is enough room in between, you could even trot over the first small jump then walk in between then trot once you think it would be a good place to get some speed. After you’ve done this for a while, you can start doing it at a canter and with bigger jumps as well if you want. Hope this helps! 🐴🐴👍😀
When you are not able to train with an experienced horse you should at least get an trainer who can help you work on your aids. When you get your horse to listening better to your aids you will be eventually be able to control it in between the jumps. That will give you a lot more confidence and trust. Also you and your horse will be able to see the distance much better what gains the trust of your horse because you'll be able to ride it to the jumps in a good quality canter with an good distance and no reason to stop or rush. If you have no trainer at hand try riding over to ground poles ( 2-4 stride's apart) and try to ride in one and the same canter over these. Then you mastered these exercise begin to shorten or to lengthening the canter ( means you can ride in between the poles 3 or 5 stride's) that teaches you to stay in charge even in a combination. When you comfortable with this you can step up and try this with little cavaletties or crosspoles untill you secure enough to try verticals or even over. But the most important factor is time never practice this when you are in a rush it will take time to build the trust and confidence in you and your horse, but if you work hard you two will become a great team jumping combinations.
Hope this helps.
Get a good, experienced horse to practice with and don't over think it. A school master will place itself so start with low heights, even ground poles. Just keep your head up and ride forward and let the horse do the work until you conquer your fear (which you will). Once you have, then you can think about placing and strides but for now, I think you're best just practicing until you aren't nervous.