Don't Hot Potato Story #1

I have been doing hot potato trading for 1 month.
I'm in crypto since January 2018. Small-time.
Obviously I've lost a lot in percentage doing hot potato.
I realized I was doing crap 3 month ago.
I immediately stopped trading and started study so much. And I soon understood the only real conclusion you can get to is that nobody does really know what's gonna happen next years.
But after having studied a strategy I've patiently waited and invested 100% all-in in ETH at 390$.
2x done and sold everything.
Luck. Meanwhile I've studied more and more and, now, I understand it has been luck.
I mean. It's 100x times better to have a good strategy. And it's possible to have a profitable strategy, but, like I said, nobody knows what is going to happen.
So just this is my main thought from weeks: the entire crypto-world needs 2 things: excellent minds and luck.