Need help setting my laptop up with my mixer/CD players.

Well you have the wrong equipment for this.
Neither the Behringer Mixer nor the CDJs you have, do have a USB connection that supports DJ software (midi over USB or HID over USB).

The gear you have is a traditional CDJ setup that is meant to play music from CD or USB sticks. Nothing wrong with that, but there is no way to connect this gear to play from a laptops DJ software, like you have it.

The only thing you could attempt to do is getting either a Traktor Scratch certified soundcard (like the Audio 6) or a Serato Scratch Soundcard (like a Rane SL series) with Timecode CDs. Depending on your choice of soundcard, you could then use Traktor or Serato, by inserting the Timecode CDs into the CD players.

However this is no cheap undertaking and you will need to read a lot about the technical sides of this, before you go along with it, or you might fail.
On the other hand you could try to sell your current gear and get a decent midi controller for the money you get.
The choice is yours.

I can only say, RTFM = Read The F*cking Manual :-). The manual in this case being the unmatched Controller Buyer Guide on the blog by prof.dr. Phil Morse himself.

Jam-packed with all the info about all the controller you could ever want.

Asking here will get you as many opinions as there are reactions :-). I have a post somewhere were I made a checklist kinda thingie for choosing a controller.

I believe you should write down what you want to accomplish with your controller (do you want to DJ in your bedroom, do you want to scratch, do you want to be a wedding DJ, etx.), next translate that into what features you want, then look at what is in your budget, then start checking which ones come closest to your wishlist and finally try to get your hands on the 2 or 3 in your shortlist to actually feel and try them (perhaps a trip to a DJ store?).

In the end buying a controller is a highly personal choice.

Greetinx,
C.