そんなささいな問題にくよくよするなよ。の英語

Don't worry about such a trivial problem.

You don't have to overtax your brain [to use your brains too much] with such a useless matter.

You need not fret over such trifles.

Such a trivial thing is out of the question.

Don't worry over such trifles.

Such a trifling thing is not worth worrying about.

Don't poke your nose into such trifling matters.

Don't gripe about petty stuff like this!

That is an issue which can't be excused with sorry.

Don't be so dejected at such a trifling matter.

Don't let such a small setback dishearten you like that.

Don't trifle with such serious matters.

I don't really see what the problem is.

You shouldn't embarrass the speaker with such an impolite question.

I'm not interested in such vulgar subjects.

Don't wield such a dangerous thing.

You should not ask such captious questions.

It's not that big of a problem.

This matter must not be trifled with.

Don't let such a trifling thing put you out.

Don't dwell too much upon the subject.

Don't trifle with the matter.

Don't be panicked by such a minor injury.

Such a problem is hard to deal with.

You don't have to go getting so hairy about such a small thing.

I think that it is not that big of a problem.

Don't talk about such vulgar topics in bad taste.

How dare you talk to me like that?

You won't get such a windfall every day.

Like your indicated, there aren't any problems with that.