This may sound like a splitting of theological hairs, but putting "this" in God's hands and putting her there are not necessarily the same thing. Part of the letting go is realizing that she is her own journey with God as well. Spiritual direction for others involves allowing others to face the start reality of the consequences of their own choices. Sugar-coating reality helps no one. As ugly as that can be for her, it is necessary for a proper self-understanding of her spiritual state. There is more than just herself at work here.
As for calling ... this can come in several forms. As one who is dealing with my own spiritual crisis of sorts, I offer some food for thought. Sometimes callings are for life, sometimes they are for a season. Regardless, clarification of those stirrings can often take some time to process, especially as you are learning new things about yourself in this whole process. Time is on your side with the calling thing too. Clarity will come.