For the beginners, trading is much better as a stepping stone to generate profit. You may not need much money in performing this. It's also up to you how much you want to trade. Unlike in mining, it needs a lot of money and it will take a long time process to gain profit. This is only just a brief introduction but off course you should have to make your own study and researches.
There is no need to think on what you should use, because both are profitable and they are different way of earning profit. You can do both at the same time, you can trade daily and wait for you mining rig to get profit from the coins you are earning.
