Be very very careful who you listen too.
There is some bad advice in some of these post.
Like 12" inch bridge is" like taking a full swing" There is no swing like in pool. It is a stroke that you control the speed of and not bridge length controls. This also means you control how far you follow through.
You did mentioned and no one asked about your stance, but it is assumed that it is low and not high. Not a good thing to assume. The stance has a great impact on your stroke.
Just some plain bad advice.
Use whatever works for you. You play long and enough and not just 9 ball, you will find that there is no one bridge length that works.
What is really important is the distance between you bridge and grip hand.
The pendulum swing is not the only way to accurately stroke the CB. If you are striking the CB , you are hitting way too hard.
The cue does not do the work. It is not like a framing hammer hammer where you let the weight of the hammer do most the work.
The cue is where you meet the shot. You use the cue to do what you want with the CB more like how a bow is used on a fiddle, not a bat or golf club.
Good luck and remember it is your style that manners.