Research shows that many lifters simply aren't selecting high enough loads to make progress.
Believe it or not, lesser loads have the potential to recruit a larger number of muscle fibers compared to a 1RM.
What are you doing with all those numbers in your lifting journal? Do you know the formulas you should be using to plan your training?
Many believe more is better, and so fail to experience what true, all-out effort entails when strength training.