Rough patch noun phrase
A tough time or a hard time
My study went through a bit of a rough patch at the beginning of the semester, but I got active support from my friends, and my score improved considerably.
Before achieving a successful career, he went through a rough patch several times.
Many businesses hit a rough patch during the Covid 19 outbreak.
This idiom is often used to express that you should accept an unpleasant situation or event because you cannot change it.
When you experience extreme and undesirable situations, it is probably essential to take extreme actions
The origin of this phrase is not clear.