Most Helpful Girl
You don't need that many brushes. It's just more convenient to have more I guess.
Watch youtub video. You won't get it exactly right but try to see where they put what.
So say they use grey, black towards the end of the eye, white in the middle, and glittery stuff on the corner of the eye (just an example)
you now know the spots to put the colors on.
Grab a brush that you own, and pick any color you like, gold towards the end, different kind gold in the middle, and then a little bit on the corner, etc