Sorry to hear about your father, KeepTruckin. I lost my mother a year ago and am still not sure that I've totally faced up to it. I definitely regret drowning myself in a bottle at the time. Stay sober so you can be totally there for him and your family and yourself. It's the best decision you can make.
Keep us updated when you can. Sometimes just talking things out helps. There's a lot of great support and wisdom to be found here.