I have lurked on The Red Pill for a few months now. I've started the SL5X5 program about a month and a half ago. Currently my overhead press is 75lb and I am failing sets. OH press and barbell row seems to be the hardest exercises. The exercise strains my upper back too much. Is there a technique that improves my form? How do I know that I have reached a plateau?

Edit: I follow the default SL5X5 routine: -Day a) Squats @ 120lb, Bench Press @ 80lb, Barbell Row @ 95lb -Day b) Squats, Overhead Press, Deadlift @ 165lb