It's understandable that u feel that way about your daughter's visit but at the same it's also natural for her to question things when she comes. I'm not saying this to be mean or to put you down or anything like that but whenever someone is overcoming something like si, drinking, drugs, etc it's only natural for the ppl in their lives to be cautious about believing they've changed or they've stopped.

Try to think of it this way, you can't change what your daughter will do or how she'll act around you when she visits; all you can do is control your own actions, urges, etc. Try to keep focusing on staying si-free and don't let her questioning you or checking things out keep you from staying clean; use that instead as a motivator to keep staying clean.