When his working class father forbids him to take a ballet class, a young boy with a passion for dancing secretly takes private lessons to audition for a slot at the Royal Ballet school.
I like your version of the inciting incident, but I don’t see that way in regards to the description of the character. Initially , he’s all passion with no particular aim in terms of an objective goal. His teacher recognizes his talent, harnesses and steers his passion toward the Royal Ballet.
How is the goal description different from your original post?
Regardless, it’s not the twists and turns of the plot that you need to describe, instead, it’s the end goal. How he gets to the goal (whether on his own volition or through someone else’s encouragement) is less important.