This analysis is indeed a strong one and I agree with it .
Not having a technical edge, one may just be guessing. Understanding and knowing tools like Volume profile and Order Flow will give you advantage, only when you put in enough time to understand them deeply. No paid courses, just discipline and you are good to go.

Management of money, it is at this point most traders burn out. Though with strong system, poor risk management can ruin your account.

Psychology like you mentioned is what keeps everything intact. Emotions will constantly try you mostly when you lose a streak or after having a break-even trade like the POPCAT kind. Learning to be relaxed at this point and hold on to your rules makes the difference between Chaos and consistency.
You want to be serious with trading?, then focus on these three points. Without them it is turn to gambling not trading anymore.