191214 - 30 days challenge

https://m.youtube.com/watch?feature=youtu.be&v=PhcSz3nh8m8


Stuck in a rut: too fixed in one particular type of job, activity, method, etc., and needing to change:
It turns out
Subtract a habit like ~ from ~
Flying by, forgotten,

If you want sth badly enough, you can do anything in 30 days
Have you ever wanted write a novel?
From scratch : 아무것도 없는 상태에서?
you might be sleep-deprived
But they’re less likely to stick
Give it a shot: 한번 해 보다 뜻의 idiom