know how you feel, but she is on her own journey, got to make her own mistakes, learn her own lessons. The hard part is watching, and letting her know you will always be there for her. My own daughter was depressed and rejected my husband and I, and I too am very much "into" a natural way of life, but she is coming back to us now spiritually, its been a painful journey especially for me (mum). 19 is still so young,that was a hards time for us too, dont push your beliefs, shes got to make up her own mind, love will win through in the end. Just let her know you love her. Im sure you know all this, but hope it helps.