Strength doesn’t always progress linearly e.g. week to week. It can come in spurts…growth spurts. So being patient is always a good idea tho in the meantime you should still endeavour to progressively overload in some form or another.
e.g. You could take off 20-25lbs off and hit sets of 6 or 7 and build back up. By the time you’re at 140 again you’ll be bigger and stronger.
Make sure you’re eating enough to grow.
Improve your form by watching vids on YouTube
When you start stalling out a lot then it’s probably time to change programs