Writing is really the only skill that I possess. It is also what I love to do but don't know if you can make any money at it.

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I don't think you can really make a living on just writing. You should get a part-time job nearby. Check your local classified ads and maybe http://www.postaroo.com And write when you've got a great idea.

It depends on what kind of writing you're talking about. Newspaper reporting, magazine, public relations, technical writing, book author? You can make good salaries working in public relations, but writing is not the only skill needed. Reporters don't make a lot of money and rookie reporters are really low paid with lousy hours. Authors... it's a tough field and you have to be more than good. I don't know much about grant writers or technical writers. I think tech writers are probably better paid and grant writers, probably depends on who you work for (ie an org with money or a penny-pincher). Good luck!