Court tomorrow for resisting arrest and disorderly conduct HELP?Assaulted by the cops for a minor incident?

Okay, on new years eve i went a lil crazy. I might have been intoxicated and got out of control, bt it wasnt intentional. See i went to this hookah bar after i left a house party, while i was there some ppl started to act crazy and the cops were called. My friend wanted us to leave so we left, bt b4 we did i realized i left my phone inside. Trying to get back in, the lady who works there stopped me and told me i wasnt allowed,even after i explained to her why i wanted to go in. She was being a total bxtch, so i started cursing and yelling @ her, i kinda dont remember most of what happened, but my friend told me the cop told me to leave a few times, but i refused. To make a long story short, the cop gave me one more chance, tell me y when i was about 2 leave i was told the officer grabbed me and slammed me against the concrete, i landed face first, and the other officer mased me in my face and all of a sudden they started to tell me to stop resisting!!! wtf is that?!? 1. he never told me i was under arrest 2. he came @ me outta nowhere 3. im a female, he didnt have to do all that! My question is i have court in the morning in the mayors office where the incident had occured, so am i in the wrong? i know im guilty of disorderly conduct, but not reisiting arrest, i couldnt breath b/c of the mase and i was in so much pain....basically, i didnt deserve to be beated up, i never touched the cop so i dont understand y he put his hands on me. Tooth #9 and #10 are slightly loose according to my dentist and i might have to have root canal therapy, my chin was scratched and knee was horribly bruised/swollen. I just noticed the officer wrote down 1/1/2010 in instead of 2011 does that make a difference @ all? please help!!!