I want to know if there is an idiom or expression in English denoting: I/We will think about a problem in the future when it happens and I would rather save energy and time not thinking/speaking about a hypothetical problem that has not come up yet.
I am really looking for an existing idiom, saying or expression, and I will appreciate any help.
Thanks a lot
"I'll cross that bridge when I come to it."
(Or he will/she will/we will and so on, of course).
Cross that bridge when you come to it - Idiom Definition - UsingEnglish.com