Here’s how you become a writer:
That’s it. There’s no secret. Just write. No one can teach you how to write. You learn to write by writing. Sure, you can improve your grammar, you can learn the technical side, but even that is plastic, it’s open to negotiation.
Bukowski said something along the lines of ‘Anyone standing on any street corner has more talent than me. But I kept writing when everyone else gave up.’ So if you want to write, write. If you don’t, or if you can’t be bothered, or you can’t find the time, that’s fine too, don’t worry about it, life is more important than writing.
Wanting to write, but not writing, is like drowning yourself in shallow water.