Boy, you sure have no qualms about showing your underwear!! But that's a good sign that you're ready to reorganize yourself and get on the right track. However it sounds as though you plan on doing a major overhaul of yourself. Wouldn't it be easier to start from scratch correctly rather that patching up all your wounds one by one? If you agree with that, may I suggest, based on what you've said, that you first of all focus 120% on learning to read the trend correctly. I think you'll then find that 90% of the problems you're having will disappear on the spot, and the rest can be solved quite easily.
The question is, of course, how do you now define and recognize a trend. Are you going to build on what you do now, or consider another approach?
I'm a believer in Radical Transparency(aka Ray Dalio of Bridgewater) when it comes to improving my trading. I wouldn't say that I don't know how to detect a trend. Obviously, my trend detection methodology can always be improved.
I think the real problem is that even when I could identify a trend, my cognitive bias was so bad and so wrong that it does NOT believe in the data. It's as though my cognitive bias overwrote my intellect. Or perhaps more correctly, my cognitive bias believes that the trend will reverse or should reverse when there's no evidence of reversal especially in the equities markets. I think this afflicts quite a number of famous hedge fund managers who are closing shops. Unlike them, I will not blame the Fed, QE unlimited printing, price distortion, lack of price discovery, bots, etc.
I will BLAME it all ON ME! I'm the ultimate decision maker in these situations. I decided to short directly or indirectly and lost when the overwhelming data showed a nice upward trend. I even know that intellectually too. But I couldn't get myself to go long.
Instead of fearing a reversal , I should learn the habit of executing each and every time. Once an upward trend is identified(using any number of methodologies), one should buy regardless of your biases.
If you are wrong then get out. Same goes for short trend(using any number of methodologies).
It's as simple as that. Until that X-Y linkage is cemented I will continue to make mistakes for the wrong reasons. That's why deliberate practice is so important.
The work of Brett Steenbarger has a great influence on me on how to think about trading training. Steenbarger said that the expert short-term trader has cemented the X-Y linkage between patterns and actions. When they see X then they act Y. That has become automatic. He recounts a story of one of the prop trader being down tens of thousands but when the trader's X pattern showed up he got in full size and ended up the day six figures. It's because the X-Y linkage has become automatic. The actual P&L numbers are not important(at least to me). The main point I got out of this is when you know what works for you then its execution should be automatic.
In many situations, I "knew" it will go certain ways(from experience) but because I was afraid of taking the perceived risk, or I'm slightly down on the day and was being defensive, etc. With hindsight, it seems silly. Because taking that one trade would have made all the difference in my daily P&L. It's all probabilities.
I want to get to that point where that X-Y linkage is automatic. That needs deliberate practice. And more importantly, the linkage for cutting losses should be automatic too! If I'm wrong then get out. No point waiting around or deer stuck in a headlight to see more unnecessary losses.
But to your question above, sure. I'm open to new methodologies. This is the rebuilding of my trading habits. I will incorporate what works, discard what didn't, and keep building on my strengths(I had quite a number of very excellent trades and results). I need to be radically transparent and fix my decision making engine in regards to trading.