Hi Daniela, welcome to the forum and to digital djing. I am sure you will love it.
BTW the Pioneer XDJ Aero looks fantastic, I am sure it will do eveything you need to get started and so much more.
I would recommend signing up for the How to DJ Fast course if you havent already. It is money well spent in my book as it takes you through from absolute beginner to putting together your own mixes in easy steps. Phil makes it really easy to understand what going on and you can take it at your own pace. I still go back over the lessons if I am struggling with something in particular to see if I can pick anything up i missed first time around.
Put the effort in and you will soon reap the rewards but most importantly enjoy it.