How to Manifest in a Movie Role

I'm very intimidated by manifesting and me and our younger sister always laugh about how like we think we're gonna manifest something bad because all these bad thoughts coming to our mind. So for me it's like saying my prayers and then journaling and literally writing out what it is that I'm hoping for. Just being intentional with your words and your thoughts and like really believing in thatIt's really that simple I think don't you think. It's still, it's still an area of life that I'm like learning about but I do I do believe in it 100% can you manifest in that movie role?