If you can see it, you can achieve it. I've been told that time and time again. Most people tell their stories of how they've been shot down by people or "you have your head in the clouds" type of thing, but I've been pretty lucky to have an amazing support system that tells me pretty much the opposite.
Now, something else I've been told is that we should see our dreams as goals and not so much dreams. Plan attainable steps to make those dreams a reality. And we need to be willing to put ourselves out there and actually do the thing we want to do!
I've ALSO been told out of the 10 people that want to do exactly what you want to do, only about 3 are putting in the effort to do it. So the competition is not as high as one would think, no matter what one wants to do.
Everybody has a passion. And if you don't, now would be an excellent time to figure it out! Once that passion is in place, figure out how to implement that into something good for the world. It doesn't have to be a career! It can be a rewarding side hustle or hobby but the passion leads to the dream leads to the goal leads to the action.
Dare to dream!