Faith over fear.

What do you do when your perspective is altered? I mean in a way that makes you rethink everything.
Yesterday, my sister pulled some cards for me. She came and sat on the bed with me and we just talked. She thinks she's becoming a medium. I don't know what to think. I have a set of angel cards. I always find that stuff intriguing but I'm still skeptical.
The cards I pulled yesterday are life-changing though. They change a decision. A big one. And I don't honestly know what to do. I know I need to trust my intuition. I know that. But it feels like there is so much loudness around my intuition that I can't hear it, not clearly. I don't know what the right thing to do is. But I wonder if I'm struggling so much with the decision right now, that maybe that means it's not sitting right. Maybe I do need to revisit it.
I am terrified. Either way it's potentially terrible consequences. I need the strength of my faith to be stronger than my fear.