I figured it would be nice to collect all of the dragon priest masks before starting the dlc, but i realized that you have to at least do the College of winter-hold quest-line AND the main quest in order to collect them all.

You should just finish everything skyrim has to offer than go to the dlc, thats wut i did

But the longer you play the more glitches there are

but to discover the glitches you should finish everything and then play again and again and again

I would, it seems wierd to go off to fight a dragon-related threat without resolving the first one