Do i have a defense in a case where i was drunk and commited property damage?

I was out for a night on the town. I became inebriated and was posing for a picture on a concrete fountain. It collapsed while a police officer was across the street watching. I weigh 140 pounds and brought down a concrete structure. I have almost zero recollection of the incident. I am being charged with criminal mischief in the first degree. I agreed to pay for the fountain in exchange for the charges to be lifted upon completion of payment. Due to financial restrictions, i have not been able to make payments. They're opening the charges and have mailed me an arraignment statement. I need to know if i have a case or i should just go in blind and accept the charges. I do not want to go to prison for 1-5 years. I'm young and on the verge of enlisting into the air force to help support my fiance and baby-on-the-way.