Once you have your 4 records for your 4 lifts, you can run a 4 week rotation and just add 5 pounds for a new record each time a lift comes up. Slow and steady! Leave a little in the tank. Don’t get excited or hyped up, just lift 5 more pounds than last time. This way, you can use those 4 lifts for a long time. It works great.
Or you can “Re-Test” and truly lift for a new, all-out max. If I go this way, I “burn out” faster and need to rotate new exercises in. Its fun to smash records by 10-15 pounds, but after awhile it’s mentally hard. Instead of getting phsyched out and missing lifts, just rotate to a new lift and blast away.