This is one of those things that a lot of people get sucked into, and I feel like it causes folks to spend a lot of time treating problems that just plain aren't there.
Part of it is coming to peace with the fact that, if you train long enough, you WILL get injured, and then understanding that being injured is no excuse to be out of the game. There are a ton of ways to train around injuries, and in turn injuries are an excellent learning opportunity. I've made far more progress from being injured than injury free.
I'm not saying to not take care of yourself, but more just to not get too caught up in what is being thrown around on the net. It seems like everyone has rounded shoulders, anterior pelvic tilt, glutes that "don't fire", mobility issues, impingements, etc etc. I can't help but feel like most of these people wouldn't have any of these issues if they had never read about them.