Hi Kieran and welcome
Since I am new to this as well (just got a new controller last week) you will most likely get better help by others.
But will try my best 🙂
I started with focusing on getting to know my music as well as counting beats.( not entirely true, I started with getting to know my equipment first) at this point I started to mix the easy part with tunes that have the same beat or close to as well as learning to set loops. My next goal is to start taking classes here next month.
I do not know how traitor works as use serato and I only go through my tunes to double check that the beat grids and the beats are correct.
I guess that if there is any good advice in this, learn your music (listen to them many times) try to count beats as well as imaging parts that are good for mixing into or out of. As well as learning of to set loops to help you mixing into or out of.
There is also an online mixing course here at digitaldj tips
Hope this helps until more qualified help arrives
Best regards
Harald