trading chart indicators: which apply to crypto? whats most useful?

[beamin]

I just signed up for trading view and it reminds me alot of coinigy. Unfortunately I dont remember much from 2017 when I was last active on bit coin.  I see a lot of indicators, but those are for stocks, which ones apply to crypto especially with day trading and the high volatility. I noticed one was set to 20 days and20 could be +/- 60%!!!! So thats going to need to be adjusted if it can or not used for crypto. Do these tools really work? It almost sounds too good to be true some magic algorithm that predicts price. One thing I havent been able to figure out if you have the 15$ account does it support the api feature where you can link your coin base but trade off tradingview?