I do want to know if it's possible for a starter to gainfully earn from Crypto trading without having to go through a professional training.
Of course, to make money here in crypto trading you don't need to be a professional trader. I'm not a professional trader, but at least since I have a few years of experience in trading, I can still make a profit, dude.
As long as you know the basic and usual behavior in an exchange that you are running as an actual trader, it is certain that you will experience profit here, as long as you at least know how to read the candlestick and other tools that you can use in trading.