When all factors are favorably aligned, you will lift your absolute maximum. Zatsiorsky calls this your Cmax (contest maximum). When things are working against you (sleep, recovery, diet, fatigue, etc.) you won't lift as much, but you still have a theoretical maximum for the day or the moment. Zatsiorsky refers to this as Tmax (training maximum).
Being smart about maxing weekly (or daily) is really a mindset thing. While you can (and should) do everything you can to recovery week to week, realize that you won't be at your all time max (Cmax). When you do a meet or max every week, fatigue accumulates so you will be working with Tmax loads.
Tmax will fluctuate day to day or week to week -- don't worry about it. Just think of Tmax as the most you can hit on any given day, even when things are working against you. Treat these weekly meets as training. Remove all emotional involvement; and don't worry about the number on the bar. Don't go crazy with psyching up or relying on a lot of stimulants to chase a certain weight.
If you learn to max regularly you will quickly establish your Tmax and can then work on improving it. If Tmax improves, Cmax does also.
When you get to a meet that actually matters (like Worlds), then you can focus on adjusting other variables to hit the highest possible Cmax.
This mentality may be a little atypical for powerlifting but it's pretty common in weightlifting - many lifters train to Tmax daily or weekly but some only truly approach Cmax once every 4 years or so at some big international event...