Hi its all about practicing and listening to the the both tunes and then finding out where is the best place to mix the two tracks once you have found a sweet spot then make sure every time you beat match the two tracks into sync then. Add the bass in slightly then move into adding mid and then high eg and that’s how you should start out mixing one track with another its all about trial and error my friend. But its all about your style of mixing and theirs no rule just work with what you can do and don’t give up and in know time you will be more confident hoped that helped
