I f***** up big time

I met this really cute girl about my age on Omegle and we started talking and after a while we moved to Snapchat, the problem is that she is lesbian and I’m a bi male. So I talked to her all night pretending I was a les. I confessed to her about 20 min ago and she hasn’t responded to my text or even seen it. Idk what to do, I feel like s*** and an a******