Wrong. There is nothing you can do to define "high-quality projects in the primary market". Everything posted above can be, and very often is, faked.
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I hardly advise against this kind of gambling. You have bigger chances at the casino. In casiono its like 49:51 (win loss) here it is 1:9999 and reward is not worth the risk.
I think most projects are scams and i agree with you that op strategy is not good.
However, it is possible to find potentially good projects.
For example, DOT was created by Gabin Wood. He won't mastering ethereum with antonopoulos and he is also erhereum co founder. Any project that he is involved is worth looking into (if you are trying to find a good project)
You can also try to read on already established projects (like top 50) and look for the best ideas and opportunities...
Ofc you may lose money , but it is possible to find something good and make money.
That being said, I am nearly all in btc (in my crypto portfolio)and I think this is most profitable strategy in long term