It's a little simpler than that, when you get a university degree did you get it from Open University or Harvard, when it comes to trading very few are trained and therefore the knowledge base is a little lacking as it's self taught.
There is a 92% probability of loss 92% of the time, meaning if you are not in the top 1% you will lose profits and almost certainly underlying capital, for the few making a profit they have a combination that works for them, and only them, it's not a secret because it's not transferable but they need to believe it is because that's how human psychology works.
The secret is beyond simple, if you take stocks are 6.5hrs (390mins) trading per day you have an entry window of 3.9mins per day for profit, you have a few percent either side of that and you will be breakeven, beyond that you lose profits and capital, and trading against the trend unless you come from banking or have auto liquidation algos will evaporate accounts taking your mind, body and soul with it.
Every trader is trying to keep it within that window using their unique combination, where over days, weeks, months, years, it nets out to profits taking out costs and losses, this whole process takes around 10,000 to 20,000hrs to learn, the markets have every combination except two perfected, which they need to liquidate bad entries at breakeven and create profits.
Is there a fast track method, sure follow Buffett and invest in index funds or you pay to access Harvard level which costs $20,000/yr and elevates you at 10x the speed to 1,000 to 2,000hrs, but even at the end of that which would normally be 2yrs, there's no guarantee you would succeed because you might still misinterpret the knowledge, algos, experience, or worse chase the markets which never has a happy ending.
Go away, do your testing, and find that 1% window each day, I have algos that do it for me but then that's where 1,000s of hours effort went, learning them, even if someone gave you a strategy, an algo, a methodology the chance of you making profits is near zero, they still need to sit with you for a year or two making sure you interpret the data correctly.