Couple of things - I am no expert either, but try a lot of things.
One, the way it feels to have a good repeatable form is very subjective. The way it feels to some is very different from the way it feels to others, and the ability to explain how something feels is difficult at best, so reading all the threads on here can get confusing.
What will work best for you will be however you can reach alignment, and bring your back muscles into play and do it with a high degree of repeatability. For me, I think of "hanging" the weight of the bow onto my back muscles. It feels to me as if I draw to my anchor, "hang" the weight onto my back muscles and expand very slowly until I'm ready to release. In practice this looks like I draw, hold, then loose. But it does feel different.
When I try to do something with my string hand, such as make it touch my shoulder on release, the result is less consistency. My hand comes back a bit, but stays close to my face or on it.
If I'm not shooting well, I usually need to remind myself to keep a relaxed string hand and relaxed bow hand as well. This cues me to use all my effort pulling away from and pushing towards my spot and none of it doing bad things.
When you say you know when you are going to make a bad shot, I know what you mean - in my case it almost always has to do with my string hand - I didn't get the right grip on the string, or something like that.