Hi there.
I think to start of with basic theory of trading cryptocurrency as well as learning some basic strategies is a good start.
Lately I check on https://theblockchaintoday.com/trading-university/ , there you can find free courses with information.
The courses aren't complete yet, but still..

Next to that it is very handy to be active in reddit /daytrading /bitcoin /cryptocurrencytrading
I get a lot of information out of those subreddits.