. . . are money or permission.
If the bulk of your artist projects require significant investments of capital or require a number of people to say "yes" before you can do it . . . then you have a real problem.
If you're a writer, it's fine to have a book that you are trying to get picked up by a major publisher . . . as long as you have another book that you are preparing to self publish.
The dancer should go on auditions and try to get the exposure that comes from being selected by a major company. She should also be creating videos that display her talent and self producing small exhibitions.
The visual artist should work on getting picked up in galleries AND create his own platform for showing the art.
Does that sound like a lot of work?
But what's the alternative?
Waiting. That's no good for you.
You should always be running on two paths. The path you need to run with others and the path you can run on your own.
Sometimes you'll focus on one path, sometimes it will be the other.
But never wait.