I have just recently achieved a double bw bench press raw at a height of 6'0. I would recommend some form of block periodization. Let me make this simple for you brother. Train for 6 weeks getting as big and muscular as possible using a ton of assistance exercises that don't necessarily have to carry over to your bench but help develop the muscles associated with a strong bench and raise work capacity...., lots of weighted pushups, weighted dips, high rep pushdowns with different bars, front side and rear delt work. DONT do any max effort work
After 6 weeks of this start transferring to exercises that will have a direct carry over to your bench press. (Inclines, close grip benches, and overhead presses for me) and slightly lower your volume on the assistance exercises you chose the first 6 weeks. I will even eliminate dumbbell presses at this point since they don't really have a carry over to my flat bench. Do this for 4 weeks.
There is also a "realization" phase with block periodization, which is basically deloading. Take a week off and really recover man...., sauna, massage, contrast showers, etc. This should allow you to hit your all time best bench.
If you must use anabolics stick to mass building compounds the first 6 weeks, at the 4 week transmutation phase you can add in Halo or tren. Remember the goal the first 6 weeks is to gain as much muscle mass as possible, you don't really start training the nervous system until 4 weeks out so I see no point to use tren or anything harsh. I personally didn't use these compounds to hit mine, but I also wasn't competing in powerlifting either.