Keep your faith , miracles will happen , My husband had many years dealing with drugs and issues at the same age as your son , in and out jail for years . However with all of that God showed him the way , as you worry also his record as an adult also. With the grace of God years later my husband now work for the polic dept , has an amazing job , an amazing family man and puts God's first . Today he also helps so many people that were once in his shoes. Don't lose hope, just prayer everyday , pray for your ex also , through all the love and forgivness come true miracles. A great book that helps so many is a "Return to love " by Marianne Williamson and all her teaching . Sending lots of healing to your family . God Bless