I have yet to hear ANYONE faced with a felony think that throwing them in jail will help them.
If you are going to try this in court, I recommend you start NOW... go to AA meetings, get at the MINIMUM weekly pee tests to prove you have stopped drinking and get your sponsor ready to testify.
"I am going to give up drinking" is second only to "I have found Jesus" as an attempt to sway a court of law.
neither is really believed without some kind of proof.

