Technical Analysis certainly helps, I know that many of the traders in term of expanding their knowledge are always hesitant since it's gonna take tremendous effort and that's true, even if you know the technical analysis it certainly doesn't guarantee that you gonna be successful since nowadays coin aren't really following general TA anyway. but knowing technical analysis will certainly helps in some case if you could recognize some pattern, then you could make decision accordingly, nowaday TA has become the tool of whales knowing whats the individual traders are gonna be doing so they could drain these individual traders money.
but i'd say, whether TA is a must know, then I'd say not really, mainly because you could do fine with just right positioning, even in investing it will be less relevant.
That’s a great point of view. Furthermore, technical analysis is one the key to succeed in trading field but it does not guarantee a profit. In fact, It is really important to do some researches in the beginning and understand what trading crypto is also it is essential to learn the crypto market and the way to read charts, after that try to set or build multiple strategies. In addition to that, it is preferable to start with a low capital and choose a solid decentralized exchange and with practice you will definitely gain more experience at the moment you boost your capital. Always take it step by step and make it simple without making hasty decisions. but i'd say, whether TA is a must know, then I'd say not really, mainly because you could do fine with just right positioning, even in investing it will be less relevant.
Technical analysis isn't a vital thing when it comes to crypto trading, but it would be beneficial for you if you will learn it. 
