I like Mellanie's reply. Start there. What do you know for sure. And I do believe there will come a time when what you have to do becomes clearer and easier to do. I don't think you are ready yet - you still have too many doubts and fears. Keep listening to what you really want and make a decision when you are ready.
WCB
God grant me the serenity,
to accept the things I cannot change,
To change the things I can,
And the wisdom to know the difference.
- Reinhold Niebuhr