make a thing of/out of something

make a (big) thing (out) of (something)

To exaggerate or put too much focus on a minor issue and make it seem like a major one. You got one B and you're acting like you're failing the class. You're making a big a thing out of nothing, if you ask me. Let's not make a thing of this. It's just a minor setback.
See also: make, of, thing
Farlex Dictionary of Idioms.

make a thing of

1 regard as essential. 2 cause a fuss about. informal
See also: make, of, thing
Farlex Partner Idioms Dictionary

make a (big) ˈthing of/out of something

(informal) make something seem much more serious or important than it really is: It was only a small mistake, but he made a really big thing out of it.
See also: make, of, out, something, thing
Farlex Partner Idioms Dictionary
See also:
  • make a (big) thing (out) of (something)
  • make a drama out of (something)
  • make a drama out of something
  • make a mountain of a molehill
  • make a mountain out of a molehill, to
  • make a thing of
  • make mountains out of molehills
  • mole
  • molehill
  • strain at a gnat