1. What does the Bible say? The Bible is our guidebook for living. It helps to discern what is sin and what is not. It trains and corrects us.
2. What do we feel God speaking? The Holy Spirit gives us direction. Proverbs 3:5-6 (NLT) “5Trust in the LORD with all your heart; do not depend on your own understanding. 6Seek his will in all you do, and he will direct your paths.”
3. What is the wise thing to do? Ephesians tells us to live as those who are wise, not as those who are unwise. Andy Stanley has written an excellent book on this subject called "The Best Question Ever." In those times, we don't know what to do, ask what is the wise thing to do?
4. What do wise people say? There is wisdom in a multitude of counselors. What do those who have made similar choices have to say? What do Godly people say? What do your Pastors or other church leaders say?
I hope this helps give you a filter for making tough decisions in life.