Wow... how did I get the impossible badge? O_O Anyway, here are some tips: 1) go with regular endless, trust me, it'll help later. 2) practice, as long as you can. 3) remember, take breaks when you need them, on youtube, a forum you like, or something else! 4) once you've gotten to 80 on endless, go to endless drunk, you now know the timings, just remember these and you'll get to 50 pretty quickly.