It is basically impossible to become an elite professional. Less than 1% of the top college athletes become successful professionals.
You can always train and become the best you can be.
What you do not want to do is nothing, and later in life have regrets about not attempting to live your dreams.
You must join an athletics club. You will get proper training and competition there.
You did 14 seconds...in what?
14 seconds for 100metres? You have zero chance of becoming a pro athlete. If you were any good someone would have spoken to you about it by now.
no