You have known since the start of this journal where the problem lies and it is not going to be solved by tracking the constantly adjusted targets and stops or the changing number of contracts or the instrument you trade. There is an interesting slip of the tongue in the above last sentence: "of those trades allowed to be taken with my rules."
Allowed by whom?
I assure you that you have my permission and the permission of everyone who has posted to this journal to only take trades that adhere to your rules and to become successful as a trader. But what you really need is permission from yourself.
In the last 2 days, since realizing that for 3 days in October I took 14 trades out of 35 that were not following my rules, I've been contemplating these questions:
1. Why have I struggled off and on for almost 2 years to follow my rules for each trade? (Before then I really didn't see importance of rules and so didn't have many, if any.)
2. Why didn't I notice that I wasn't following my rules?
3. Am I going to always revert back to trading without rules, even years down the road?
And those questions have led me to wondering what the root of the problem is for taking a trade not following my rules. Why do I do it?
There was a time, a while ago, that I felt like if I traded every thing that moved, I'd learn what it was going to do. I've stopped that, but I don't think I've recognized that this is really a dangerous, faulty way to study price action and form rules.
Many times when I take a trade not according to my rules it's because I think I know what price is likely to do. For example, I sometimes will trade what I think is the very top or very bottom just to see if I can find a "feel" to it that works, even though my rules say to wait for a retracement to get into a trend. It's not really wrong to want to improve on reading where tops and bottoms are....but I think here is the difference.....it isn't a good or safe practice to experiment in order to create future rules, when actually trading. I think that is basically what is at the root of the problem I've struggled with for years now.
I really need to let it sink into my mind that I should not be trying to find what works while trading in real time. I like what you wrote in an earlier post:
"Rules are based upon past and present price action and not upon what you hope will happen in the future. You can create and test a methodology based on price behavior events like new highs/lows, double bottoms/tops, tests of support/resistance, etc."
There is one other underlying root to the problem....and it is partly why I struggle with overtrading: it is much more exciting to experiment in real time than to build rules based on looking at still, historical charts. So, I have a second issue going on, and that is the desire to use trading for ...Oh no, do I admit it? Entertainment.

Trading isn't suppose to be a fun hobby for me....it might be for others, but I want to trade it as I would any other business opportunity: hard work.
Now I will make a rule to only follow my rules. Oh wait, I've made that rule before, and I didn't follow it. So now, I will make another rule that I must follow my rule to follow my rules.
So the takeaways are no more trying a trade not in my plan to see if it works, when actually trading. Instead, study still (not moving) charts to work at improving. Especially keep in mind that experimenting when trading can lead to a "gambling" mentality for the thrill of it, which I'm very prone to becoming addicted to. My goal is rational, rules-based trading.
Thanks for pointing out the key to success:
"...to only take trades that adhere to your rules and to become successful as a trader."