Everyone is different. That is pretty much the way I did it. I'm 45, I quit when I was 43. I had been dipping since I was 10, (little league). If you're going to set a date, set it now and stick to it. I worked my way up to the date, but I told everyone around me so I couldn't change it. Then I posted day 1 in my quit group and read every day. Make sure you go to
http://www.killthecan.org/ and read. You will find out what you will be going through and what you can do to prepare for it. Good luck, use the site. It works. I've been quit for 769 days. :)
And we all start with Day 1.