While I do agree that technical analysis play a big role in trading success but there are also other things we should put into partners like fundamental, learning stop loss, resistance, etc.
But I do have acquintances who are doing some trading without the use of technical analysis. They're just doing some buying low and selling high. Waiting for bitcoin and other coin to decrease in price and then buy again. They are just following the hype and go with the flow. Just as simple as that and they are still profiting.
Going with the flow and accepting the risk that accompanied by your decisions, very tough but
effective if you have good patience inside.
Buying low and selling high, most of the time if you don't know how to analyze properly, you'll
be trapped and lose your investment.
There are many factors that influenced the market especially crypto, with it's volatile nature you
need to have big nerve and patience to gamble with fate.
Though, technical analysis gives you much closer look with what to expect the market will go
anticipation can be more clearer.