I have slept a few times since reading this or any of your threads so a sincere question: How many different ball sets have you tried? Clean your balls one at a time by hand.
Start with the cue ball dead center, put one ball beside it, swing your cue ball to the other side of that spacer ball and take it off the table or back in the rack if you need it to complete the rack. Now use 1.5 to 2 tips low, half a tip left, english. If you are left handed, use have a tip right instead of the left. Now forget a hard break. Keep hitting the cue ball slower until you can get an absolute dead center hit on the one ball. Not the front of the cue ball, where a ghost ball would completely shade the one ball. Equal overlap both sides.
Always check for gaps in the rack. If there are any, break into the solid side of the rack trying to put the force away from the gaps.
The break is first about accuracy, more important than speed. I can make a well racked set of balls explode with a half speed break. A dead center hit on the cue ball or half a tip of low will work too. Main thing, always consider how the power is going through the rack.
Probably rehashing stuff I have already said but it is late night and I'm playing rachet jaw. Quit fighting the break and let your cue stick flow into the cue ball. While working on the break a long pause, several seconds, before the final forward stroke is good. Later you can reduce the pause to very little or nothing but the forward stroke should start forward very slowly and accelerate through the cue ball. Think of it as a gathering of force in the arm you are stroking with. Your whole body feeding force to that one arm. If the break doesn't work for you after three or four tries, use your spacer ball to move it over again. Repeat until you get a break. You might try moving the cue ball back to the line across the first diamonds on the side rail too. Break off of the head rail. Try dead center then put your spacer ball dead center and set the cue ball alongside it, only a half ball off the center line. Then try moving the cue ball over one ball width at a time until you find a sweet spot. Bridge off the rail with the cue ball only one diamond out.
Have fun!
Hu