these are shitty numbers for 4.5 years of training, in any case, don't be afraid to go heavier on the bench press, for example,
do 3-4 warmup sets, 6-8 reps
hit your 90 kgs for 6
do 3-4 more sets with 100 kgs, 2-4 reps with a spotter
3 sets of heavy flyes
two-three days later follow with heavy triceps work, focus on close grip benches
2-3 warmup sets
1 set, 6 reps, add more weight
1 set, 4 reps, add more weight
1 set, 2-3 reps
3-4 sets of dips, 6-8 reps