There have been many times where I was dead-set on being right about things, only to later find out I was wrong.
That’s the beauty of exercise and strength training: continuing to learn and grow. You should never be complacent with what you know. Buy books, read articles, ask around your gym. You can only benefit from this. You can add to what you already have in your arsenal and become a complete package. Here are some things I wish I knew when I started 8 years ago. (Disclaimer: this is mainly directed at beginners, but some of these things may be new to you even if you’ve been lifting for some time)