Mid 40s, Hard Work = No Gains, Losing Motivation

Not sure you mean deadlifts every workout, but that alone can make you hit a wall.

Get on an organised plan off this site with varied intensity/rep schemes and planned progression. 5/3/1 triumvirate below is a solid starting point.Start light and you should see steady progress for 4-6+ months…

Reading a bunch of Dan John articles great for the older lifter also…