I am just start high jump as well, and it is a lot harder then it looks. Our numbers are practically the same, as I am 5’10, 157 and have a 32 inch standing vertical.
I dont really have anyone that knows what they are doing either, and it makes it extremely hard. I was going off my left foot for 2 weeks, but realized today i get much higher off right foot. It is 100% technical, so I will be interested to see the responses in this thread.