Don't be afraid or ashamed; We all make mistakes.
What's important is to meet again with God and know that faith has always been in you. In the most difficult moments don't be afraid to ask God for help, he always listen to you even if you have moved away, even if you have offended him.
Parents always forgive their children and direct them when they are lost, they know that at the bottom of their soul there has always been love and faith. Always keep it within you and do not fear, trust in God.