I really understand what you mean when you say that all the good you've done feels like it is just erased and you are remembered for something you are not. That was my major concern with drinking as well. I felt as though I was a happy, loving, thoughtful girlfriend, and then after waking up with a hangover, I would spend the following week apologizing and getting criticized for all the mean things I said while intoxicated.
Welcome to SR!
Thankfully, you have realized you need help and with the support of everyone on here, you are well on your way!