For me trading has been the most profitable way to earn more BTC.
That said, there is always a certain risk when trading instead of holding.
In my eyes being a successfull trader is all about doing solid research before, and after you placed your investment.
Being well informed about the coins you trade/hold is very important as new events have a huge effect on price.
Personally I try to focus on reading articles and attending to crypto meetings.
Recently I discovered some free software that predicts the future movement of several coins.
www.cryptoforesicht.orgI strongly believe that if you put some time into understanding how to trade you will succeed eventually.