I just dont know anymore!

I know that I should be a decisive person but I am just not too sure how to be. I know that sounds stupid but I just cant seem to help it!!!!! How can I stand up to him if I am so afraid to lose him? I am really not the preson I used to be. I have become weaker and I dont know when it happened but what I do know id that it needs to change and I need to find myself in order to make that change a reality.