Be ambitious enough to disappoint your current limitations.

Your limitations are not neutral facts. They are conclusions you reached at a moment when you had less skill, less information, and less support than you have now, and they have been quietly setting the ceiling ever since. Ambition that stays inside them will never test whether they are still true. Aiming past them is how you find out what was a wall and what was only a habit of stopping.

Name the thing you assume you are not capable of, then design one small attempt that would produce real information about it. Not a leap. A test. Let the result, rather than the old assumption, decide what happens next.