If you want, try this routine:
Flat bench- Do 3-4 feeder sets working up to your 8 rep max. I want you failing at 8 reps, true failure. Take a rest, then lower the weight (not super set) and do a set where 12 or so reps is failure.
Incline DB's- Same methodology as above
Machine or cable flys: 3 sets of 15 with a 1-2 second SQUUEEEEZE at the contraction, and slowly lowered each rep. This shit should HURT!
Dips: Do 20 bodyweight dips for 4 sets (or failure). If you can hit more than 20 with good form and controlled movement, add weight.
Machine press: Work up to 8 rep max (4 feeder sets of 8-10 is fine). Knock out a HARD 8, rest then do a HARD 12.
Stretch pushups: Use either plyo board, dumbbells, something to increase the stretch and do 4 sets to failure
Honestly, if this workout doesn't murder your chest, it's time to evaluate how hard you're actually working your chest. If done properly, this should literally bring you close to death.