There are thing that you should learn :
1. Basic crypto : what it is, how it works, etc
2. technical analysis : candlestick, timeframe, indicator, trader type.
3. Fundamental analysis : read news, whitepaper, website.
4. Strategy : when buy, when sell, cutloss, risk reward ratio, psychology
All above you can learn in google, there are many article, journal, website that tells you
i think that's better than i tell ur investment decision
cheers