Least (((HUGS)))...the past is past and you cannot change it. Please forgive yourself. What you can do now is live the sober life that you were meant to live. Your daughter loves you and will see that you are trying, and that will make her love you even more. I too have a daughter and I felt all those guilty feelings you are feeling now. Rehab taught me that I have to let those feelings go and work on being the new and improved me. This is a good place for the serenity prayer.
Help me accept the things I cannot change;
Change the things I can;
And the wisdom to know the difference.
Prayers and hugs going out to you, sweetie.