Thank you for sharing your dream with us. Please take everything that I share to the Holy Spirit as He Alone gives the accurate interpretation.
Perhaps, the dream speaks to a new point in your spiritual life (18 years)and you are to have an intimate blood (spiritual blood) relationship with someone in your family but I believe it is the church family. It appears that you’ll play a pivotal role. Ask God for direction and what may appear to be a key obstacle in your church may not really be one or might be for a season.