Your dreams don't need external approval.
(Pssst! The next, and final, in its current form, session of Healthy Boundaries for Kind People, is open for registration. If that sentence evokes a visceral response in you, I invite you to check it out. It's a life-changer and its ultimately about love.)
What are your dreams? How do you feel about them?
Here's the deal: they are yours. The metrics of your dreams don't have to fulfill anyone else's requirements.
The well-intentioned sayings like "Your dreams aren't big enough if they don't scare you", or "If it's not a hell yes, it's a hell no!", don't have to be the yardstick of the worthiness or the adequacy of your dreams and your desires.
(Besides, I've always thought "if it's not a hell yes" it might be that you are a rich, complex, and deeply thoughtful individual.)
Healthy Boundaries apply to our dreams and ambitions too. Just like I use a garden as a metaphor for healthy boundaries, our dreams need rich soil and hedgerows to flourish. That soil is your experience and you can enrich it, as you like, and/or you can allow others to enrich it. Just make sure the compost is also healthy and not someone's shit, disguised as fertilizer, that stunts your growth. The hedgerows are to keep the beneficial pollinators in and the predators at bay.
All of your life is worthy of healthy boundaries. With them you can bloom and flourish.
Tend your soil.