Your best bet is to take a course in writing. Start at a local community college.
Writing is a skilled profession and requires training and practice. Funny how nobody thinks a person can "just become" a doctor by doctoring, or a lawyer by practicing law. No, they must go to school, they get trained, and certified. Writers too.
Maybe in the past "just writing" to become a writer might have got you somewhere, But you will develop and improve much much faster in a writing course: composition, creative writing or journalism. All are hard. All are good. Follow your dream but be sensible and get an education, as we do for everything else we dream about. That is, if you are serious.