okay..this is my problem and this is what I'm tryin to do..and I want to know where am I messin up at....

I went to my sound recorder and recorded a quick freestlye..I saved it,then I went to Kazaa and uploaded to beats..Blunt Mc told me to get Cool Edit Pro,I got that,but I dont know how to use it...I need to know how do I mix the beat with my freestlye together and what do I use cool edit pro for?