<human>: EDIT: The original charge is a felony charge. Is it possible to get it reduced?

I just got a letter in the mail stating there's a warrant for my arrest for assualt with a deadly weapon. I'm in California. I'm kind of freaking out right now so I'm gonna present the facts and ask for any/all advice, how to proceed, and what possible/expected outcomes there may be (I understand it can be incredibly hard to predict a court outcome, but any guesses of best/worst case may appease how I'm currently feeling).

About 6 months ago I was in a bar and ordered bottle service at a table. At the end of the night 2 guys came up and tried to drink the alcohol we had left over. I asked them to leave. They wouldn't. I'm not exactly sure of the order of who started what, but I ended up swinging one of the bottles at one of the guys (I didn't make ANY contact... complete miss). I ended up getting grabbed by one guy and punched by the other.

Cops come, but the 2 guys left before they got there. I talk to the cops and tell them everything. Keep in mind I'm pretty drunk at this point. I cooperate with the cops and tell them I swung a bottle, but missed. I said it was in self-defense (I think it was, but I'm not positive as it was a long time ago and I was drunk). I talked to the cops for about a half an hour, and probably sounded like an idiot cause I was drunk and my adrenaline was flowing. Cops tell me they have videos in the bar, and that they'll look at the videos and contact me later. Haven't heard from them until I get this letter in the mail. 

I have a job offer for when I graduate but I'm freaking out that it's currently in jeapordy.

This is my first encounter with the law, not even a speeding ticket.

Can you condense the text into three sentences or less?
<bot>: I'm a college kid who got too drunk and got in a bar fight. I tried hitting the guy with a bottle and missed. There's probably video evidence of the night. I'm now charged with assault with a deadly weapon