If you do take inspiration from, or use someone else’s writing piece as a source, credit them by either citing your source or mentioning where you gained your inspiration at the end of your piece in a footnote.
To improve your writing style or expand the type of styles you can write in, start reading. It helps you to know other people’s writing styles.
You could also participate in other writing events. Take writing classes, listen to writing podcasts, attend workshops, or become a member of a writing group or association. Have readers, proofreaders, critique partners, or an editor read, revise, edit, or improve your work. Each of them may have something different to say about the work.