I don't have a defined style (TT)

My style always varies from day to day.

I think it's normal, especially when you're young, but... How people manage to have just one style?! I'm jealous of people who have their style and can handle it!! 

I always use either vibrant colors or all black, super flashy or maybe something that goes unnoticed (never "basic") I always like to have textures, play with styles and colors...

I need advice, how do you choose JUST one? There are so many styles and colors...