I like to keep it simple. Look for historical highs and lows, set your levels, buy high, sell low! For all the newbies to trading, keep it simple, buy high, sell low! don't think too much about it 
This is effective on trading strategy where in you can earn more just making sure of your every moves.
Be wise on buy and selling or trading especially coins, make sure that you are not that in less estate of pricing it.
but sometimes we can not predict that the price of coin will growing up or goes down. it is very hard for someone who newbies in trading.
All of which is true, but what's the harm if we still see the advantages which could possibly occur in the future..?.?. Because of the advantages or think of the advantage that we can be in the future will make us excited each time and it can be possible to get a bigger profit than we think. So, it is indeed a better way and profitable than the others