Weightroom

You may be at the point where you're past your newbie gains and about as far as a linear program can take you. At that point its time to switch to a periodized program to continue progressing. Periodized programs vary the sets, reps and weights from week to week. As a simple example here is how 5/3/1 FSL handles it:

Week 1

Main work:
5 @ 65%
5 @ 75%
5+ @ 85%
Supplemental work:
5 x 5 @ 65%

Week 2

Main work:
3 @ 70%
3 @ 80%
3+ @ 90%
Supplemental work:
5 x 5 @ 70%

Week 3

Main work:
5 @ 75%
3 @ 85%
1+ @ 95%
Supplemental work:
5 x 5 @ 75%

After week three you increase your training max by 5lbs for overhead press and bench, and 10lbs for squat and deadlift, then restart at week 1 again. The increase in the training max will be imperceptible spread out over the next cycle, but in the course of a year that would be +75lbs to your upper and +150lbs to your lower body training maxes, not counting any deloads. That will have you benching two plates within the year easily.

5/3/1 has a lot of different templates including a few options for 3 day full body if you like that split, tactical barbell too and most likely some others that I"m less familiar with.