Progressive overload, without the spreadsheet
Adding weight every session stops working within weeks. Adding reps first, then weight, keeps working for years.
Progressive overload is the only training principle that genuinely cannot be skipped. It is also the one most people implement badly, by adding weight to the bar every single session until they stall and blame their programme.
Reps before weight
Double progression works like this: pick a rep range, say eight to twelve. Start at a weight you can manage for eight. Every session, try to add a rep. When you hit twelve on every set, add the smallest available increment and drop back to eight.
The advantage is that progress is available every single session, even on a bad one. You are almost never expected to add weight on a day when your sleep was poor and your last meal was four hours ago.
When to stop pushing
If you fail to add a rep on the same exercise three sessions running, the problem is usually recovery, not effort. Deload that lift by ten percent and build back. This is unglamorous and it works.