((( tears ))) Congrats on your realizations. You have made some bad choices for yourself in the past but try not to dwell in their memory. You've made the decision to change your life for the better and that's HUGE!
It's never too late to become the woman you want to be. As women we are held back, detoured, devoured and often tortured. You are getting ready for the future by deciding to get yourself clean. You've gone through some pretty difficult stuff and with your kids you need all the clarity life can muster. Talk to your kids, let them know how you feel and make it clear to them you want to again become a team player with them.
Kids understand apologies.