Before, I read books like trading for dummies. for dummies book series has all the answer I think.

Also, aside from that I studied a lot of indicators by watching youtube and searching the web.
While reading and studying, I usually apply it in Tradingview charts.
I watch charts, applied some indicators, check the results, develop some plan, analyze Risk and reward and everything.

I also try to paper trade and if I can see that my trading plan is good then I enter the market.

There's also a free paper trading for crypto inside the Tradingview. You should utilize that.