I was away from the Church when my children were growing up. They were baptized Catholic and when the oldest was 7 I left the Church. Now that I’ve come home my children aren’t interested. What will happen to my children and will God forgive me?
God forgives all repented sin; the only sin that cannot be forgiven is the one that is not repented. As for your children, God will only hold your children responsible for following him to the best of their ability according to the light that they’ve had. Continue to pray for them that God will grant them more light and grace to follow him more closely and eventually lead them home to the Catholic Church. This book may also be helpful:
Search and Rescue by Patrick Madrid