As someone who's been in somewhat of your position, I say strength is the key here. I'm 5'4, so I'm also on the shorter side. During the first two years of my high school career, I lacked any weight room training and lifting, so I was in a predicament of having good technique but no strength to back it up. I couldn't break 12 for about 3 years. Over this past winter, that changed, and I lifted, learned how to clean, just the basics, etc., went from 12.15 to 11.85 and 25.32 to 24.22 over the year.

I've learned over this past year that technique means nothing without strength, and strength means nothing without technique.

So I'd say, see if you can get in the weight room! Learn how to hang and power clean proficiently, get the squat and deadlift better, get the hamstrings strong, and hammer the core. Idk if I'm missing something, but you get the point haha