Been stuck at the same squat weight for about a month and it's doing my head in. I feel like I'm training hard but going nowhere. How do you handle the *mental* stress of a plateau?
Mate, plateaus are part of the process. Stressing about it is the worst thing you can do (raises cortisol, hinders recovery). Take a deload week. Seriously. Drop the weight, focus on form. Come back fresh.
Also, look at other metrics. Are you moving the same weight *faster*? Is your form better? Is your recovery quicker? Performance isn't just the max number on the bar. Find other "wins".
Deload + check your sleep/food. 9/10 times I plateau, it's because my life *outside* the gym is too stressful or I'm not eating enough. The training is the stimulus, the *recovery* is the adaptation.