Hi,
So sorry to read your post and see how difficult and worrying this is for you. it must make it even harder worrying about the impact on your daughter. if you would like some more support please contact us at Icarus Trust. We are a charity that supports people like yourself having to deal with addiction in the family. We have trained and experienced Family friends who would talk with you if you get in touch. Maybe talking would help to know how to move forwards.
You can contact Icarus Trust on help@icarustrust.org or visit our website http://www.icarustrust.org
I hope this helps. Good luck.