Oh no!

So I had this plan to grow my hair out and go more brunette because I am getting lazy when it comes to my hair and I just want it to be simple. Im not very good at being "girly" sometimes and I just have other priorities right now. BUT I came across this picture and my whole world has been changed around.
I absolutely love Michelle Williams style and now I want to cut my hair shorter and go more blonde. What to do?? I dont know if I will go this short and definitely keep the bangs longer in the front but maybe shorter in the back??
It might be fun for summer? The only thing w/ blonde and short hair is that you HAVE to keep it up. Do I want that kind of responsibility at this point in my life? Help!