Begin with one manifestation you can say in a single breath. That is the core. Everything else is a layer.
Add repetition if you tend to forget the goal. Add visualization if the future feels abstract. Add gratitude if the practice is becoming dominated by lack. Add an action plan if you are spending more time imagining than moving.
Share it when being witnessed would help. Reaffirm it when returning to the same intention matters more than creating a new one. Track milestones when the goal has a long horizon.
The point is not to make the ritual complicated. The point is to make the future easier to picture, remember and act toward.