Irrespective of any stream you are from, you can indeed become a writer if you have the skills. When we talk about the skills, it includes creativity, imagination, passion to write, good grammar and punctuation skills. Good writers are in demand in every season and so you have a braod scope in advertisment, publishing houses, media etc. You can start writing blogs or your own writ ups socially and even you can work as freelance writer till the time you gain expertise and confidence.

You can try to get work in magazines, newspapers etc.

And then look for a full time prospect in it.

All the best!