Sorry for what brings you here. Even the brightest of us lose our judgement and often our integrity when we hit the booze.
I agree with the other posters re getting good legal representation. I'd also suggest getting some support in your recovery / getting sober. AA would be a good place to start this, as you could go to a meeting daily from today. Why not look up the meeting times and places and pencil some into your schedule for the week right away? There will be people there who understand exactly what you're going through and will be able to support you, and who are committed to doing this anonymously.
None of this will be able to be sorted out overnight, so you're likely to have a need of that support in the coming months, and ongoing as you learn to live comfortably in sobriety (that itself takes time).
It may be tough, but you CAN do this. To be honest, your other options don't look so good. Stay sober and show whoever will be judging you that you really DO want To change and aren't going to risk this ever happening again. These actions will speak volumes compared with just world's in court.
Some AA meetings will also sign an attendance register if you ask (some people are given them by courts, but you could draw one up for yourself).
Wishing you all the best for your sobriety and recovery.
This webpage might be useful...
https://www.verywellmind.com/how-cou...us-works-67047
BB