autoimaginarse

To picture or envision oneself in a hypothetical role or situation — relatively uncommon, mostly seen in reflective or motivational writing: autoimaginarse el éxito futuro.

• Le costaba autoimaginarse como jefe de su propio negocio. — He had trouble picturing himself as the head of his own business.
• El ejercicio consiste en autoimaginarse dentro de cinco años. — The exercise involves imagining yourself five years from now.
• Autoimaginarse en otra vida puede ser un buen punto de partida creativo. — Imagining yourself in another life can be a good creative starting point.

This overlaps heavily with the simpler imaginarse — many native speakers would just say imaginarse in this context, so autoimaginarse can sound like self-help jargon outside that specific register.