i just need to get through this week

this phrase is used as an attempt to delude one self that one will be alright with time. it's to give the impression that the pain one is currently going through is temporary when in fact it is permanent and will only get worse with time. often times, one is actually aware that nothing will ameliorate in the upcoming week. and should it, it would be a fleeting "improvement"
this phrase can be said to some else when they ask if you are okay, in order to avoid talking about the actually problems your are facing which are now pushing you to the brink of de-aliving yourself.

friend 1: are you okay bro, you've been really down the last couple of days

friend 2: haha, im fine. i just need to get through this week

friend 1: real af