I don’t bother with cue points or any kind of preparation. I’ve tried it, and no doubt you can get a better sounding mix by doing some prep. I just find it really boring.
I just play for a few hours once or twice a week. Some mixes don’t work out, some do. I link the ones that do in rekordbox and after a while, I have bunches of tunes which I know I can mix together.
Obviously there are some far better Dj’s than myself on here, they may have better processes. I’ve just settled on one where I can get the enjoyment I want from Djing and still turn out the occasional mix that’s worth listening to.
One thing is for sure, over analysing it is guaranteed to turn the whole process into a chore.