Reply to Beginner advice

Hello djranking s community

So I'm looking for an advice and I believe that this is the best place to get it

I'm trying to get into djing, atm its just a hobby but who knows, and I got 2 CD decks and one mixer (2x American Audio CDI 300 and reloop Access 3), from a friend and started reading a watching videos about the basics beatmatching, mixing and I'm going well I believe (at least it sounds good to me ), but I feel that I'm a bit limited with this setup and would like to get a bit more.

My main question is should I get a controller something like S2 or get a timecode kit to add to this setup, audio 6 maybe and later get some upgrades better cdjs and mixer.
I also own one ipad w/ traktor dj, the audio 6 would be good I could add the ipad to the setup right?