Thanks for the info. Now I'm properly oriented. I'm starting the process to make my first trade.
Reply to morenomunozdelanava: I personally never keep my coins on any exchange for longer than needed. Too risky IMHO. For me, paying the various fees are much better than losing all my coins. Exchanges are built on very complex, vulnerable software stacks run by fallible humans. They will get hacked, just a matter of when.
Cheers,
But when you transfer your bitcoin from one wallet to another every once in a while, you will be paying fees always. Well I hope your trading gains will be quite big so that the transfer that will happen once in a while is worth it. When it comes to risk, by the fact that you are trading you are already risking something. When your BTC is currently traded every once in a while into various altcoins, then, for me, there is really no need to withdraw them all the time.