I can recommend you a good tutorial for beginners on how to trade cryptocurrency offered by GDAX. If you trade on GDAX/ Coinbase, using two accounts on two cryptocurrency exchanges, linked to each other, you can trade without paying fees. Here, you will find out how to make your initial deposit, how to create a limit order on GDAX, and so on.
https://www.youtube.com/watch?v=nKbF7xMIzgo But, of course, I need to mention NewConsort trading platform that will be launched in Q3 2019. Here, you will be able to improve your skills and get in-person workshops from the best traders all over the world!