The biggest thing I learned was that a program doesn't have to feel exciting to be effective. Some of my best progress came from doing the same boring shit over and over and getting better at it.
Not exactly Instagram-worthy, but it works.
I change exercises when my body tells me to, not because the internet says itās time for a new split. 
Yeah, Iām definitely guilty of chasing that ānew programā feeling. I think Iām gonna stop looking for something different every few weeks and actually see what happens when I stick with one setup and track everything properly. That alone should probably clean up half the mistakes Iāve been making.