I got cocky as a novice, and fucked my back pretty bad and was out of comission for a 4 months or so. Got cocky chasing huge (for me, at the time) numbers and ended up losing way more progress than I gained. Minor things here and there in my shoulders and elbows, which I ended up fixing by tearing apart my own bench press form and being meticulous with ever part of the lift. Bench press is, in my opinion, the most technical lift of the big three.

Slow consistent progress wins out in the long run, I'm a huge fan of sub-maximal training and going for rep PRS and not maxing out often. I only compete at most twice per year, and don't bother going for max attempts when I'm not at a meet.

All of my training these days is based around the principles in Jim Wendler's 5/3/1 and I've slowly added my own tweaks and customizations over time to it and it hasn't let me down.

Don't neglect mobility work. It's boring, but it'll save you in the long run.