My d turned 18 in Dec and started testing the limits but it only lasted a month. We also have a challenging R but she seems to be mellowing out and using her maturity to be mature.
I send my greeting for a great BD for your d.
Again I have to ditto what B said. You are really doing well, just lonely. But it won't always be that way.
I saw what you said on V post about the erratic behavior of your exh and it was most of what I experienced with my H. It was just the A talking all the time. He tells me now that it was all about wanting to drink and seeing our R getting the way of his drinking. Don't take it personally.