I'm desperate, that all I can say about my situation right now. My parents planned to make me the next heir of their restaurant yet I want to have a chance in life where I could choose my own career and my own future. But unfortunately one night, I exploded in tears and demanded to know why they were preventing me from becoming an author. Like all parents dealing with outbursts and rebellion of their children, they ground them. It was too much for me when they ground me from going to the public library until next Summer. They took away my Ipad to prevent any typing (I'm using the school laptop to do 'Homework' and writing this explanation.) I am almost finished with my book but I'm afraid of what will come after next if I brought the subject back up again during dinner.
Two pieces of advice 'Love what you do' & 'Significant achievement requires hard work and commitment, but you still have to eat.'
Writing a book is not the prerequisite step to be an author. Selling your book, being paid for your art, is the required step to be an author. Only a tiny minority of authors are able to support themselves with their writing, most have regular jobs: teaching, journalism, computer programming. And most all writers worked on their first opus while working an unrelated job: bartending, waiting tables, substitute high school teacher, managing a restaurant.
Given the quality of the writing in your question, and ignoring the misspellings and grammatical errors, since you are clearly upset, it's clear you have a lot to learn about being an effective writer and storyteller. And, there is nothing wrong with that. You are young, it's expected.
If, while you are learning how to be a writer and how to tell engaging stories, you have a way to support yourself, then you are very much advantaged over other aspiring writers, you won't go hungry and you can keep a roof over your head. This means you can afford to write and learn and submit your work to publishers. When they start buying your work, and sharing it with the public, and the public, in turn, buys your books, then you'll be in the position to decide what comes next.
If the life of an heir to a restaurant is truly too awful for you, the find something else to do, and love it. Not do what you love, but love whatever it is you do. Find the joy and satisfaction that comes from doing a job well. That gives you the mental freedom to pursue the things that you love. And when Art is the thing you love, it's important to give yourself the proper time and environment to learn the skills and personal insights to express the importance and uniqueness that is you in ways that interest other people. There is always the chance that you are not very unique and have nothing of value to say, but you will never know unless you give it the best shot you've got.