don't sweat the small stuff!

Don't sweat the small stuff. (don’t worry about it; if it’s small, it’s not that important. Worry about the large things in life instead) {US, informal} — Не парься! (разг.); Не запаривайся по пустякам; Да не заморачивайся ты по ерунде!; Не бери в голову — это все мелочи; ...

USAGE: something that you say in order to tell someone not to worry about things that are not important. Advising someone to not sweat the small stuff is the same as telling them not to worry about trivial or unimportant issues.

Example 1: Don't sweat the small stuff, Sam. It's just office gossip — no one takes it seriously. (CIDI)

Example 2: "You're doing a good job, Ken. You've made some minor mistakes, but don't sweat the small stuff," his boss said.

Also
Don’t sweat it! (Don’t worry about it!)

Example 1: No problem. Don’t sweat it!

Example 2: Don’t sweat it! We’ll take care of it.

Frequency of usage: often

see also
[не парься]
[get a life]