If you want to reduce the juries, get this book. It’s called, Rebuilding Milo. Dr Aaron Horschig. Or follow him on; Instagram; squat_university.
Best of luck.
https://www.amazon.com/dp/1628604220/ref=cm_sw_r_apan_glt_i_3VGGSQ0VF1ANWHSWBYJQ
This book is a little dry but goes into a lot of detail explaining movement pattern dysfunctions in layman's terms, and is designed to help lifters assess their own functions using tests similar to the one you mentioned.
It also offers specific solutions for correcting them.
Requires consistency and self motivation, but from personal experience following the recommended exercises for strengthening can really make a difference with imbalances.
Good luck to you.
I would lose the belt. With almost all lifts you need a strong core and a belt gives you a false sense of that. I would concentrate on proper core engagement throughout all your lifts. I had low back injury that took me over a year to recover. It might have been the best thing that happened to me. I dropped the weight and went back to the basics and now I am lifting heavier than ever. I would recommend Rebuilding Milo
Core stiffness is what you're looking for. Dr. Aaron Horschig puts out a ton of info across a multitude of platforms.
Podcast: squat university episode 103
Youtube: McGill Big 3
Blog: 3 CORE STABILITY EXERCISES FOR A BETTER SQUAT
Book (Amazon link): Rebuilding Milo
You can follow him on most social media platforms as well. Just search "squat university"
Good luck homie!