I once had a step-daughter that was running away and managed to become a full-fledged prostitute . . . she wasn't quiet yet 15 years old.
It didn't matter what I did, whether it was putting up missing child posters in grocery stores and upon telephone poles . . . the message was always the same, which was . . . "We love you."
As for trusting God even though you have a broken heart . . . my beliefs are that God is in control of all things, and if this is True, then Trust God in His Eternal Plan. Trust the Plan for you and the development of your relationship with God.
Try not to worry. Worry won't solve any problem . . . ever.