Today my mood is suddenly drop-ing downnnnnnn!

I had promise my friend to become their actor for the assignment. But today when I receive the scripts and outline, I was get shock! They did not tell me early that my character would be women. So sad and upset, don’t know what should I do now?
I can act actually but feel so sad, they should tell me early, I need to prepare. Don’t know whether still want to act or not. T.t
haiz....
伤心！心痛！很忐忑！