And if you're past school age and in work, you can still start small. The last office I worked in, there was an official company-wide newsletter that staff could get involved in. Loads of call-centre and other staff applied for - and moved into - work in the newsletter. Mostly they were either doing it on top of their normal work although they did also get paid for it, Some of the guys that wrote articles would submit them and get paid per article, but a few got positions in the newsletter that let them take it on as their only job in the company. It was primarily to share company news with everyone, but included some fun sections like competitions, photoshoots from fun staff events, employee-of-the-week and some joke corners, crosswords and stories.
If your company doesn't have a newsletter, you could offer to start a small one. You'd probably be working for free, in your own time outside of work, and it'd be mostly boring articles about what's been happening in work, but it could grow. Get some colleagues with languishing art or writing skills involved and distribute it free on the staff email, provided you get permission. I know we always quite enjoyed getting ours every month, and departments were always thinking up fun activities and events they could do for an excuse to up productivity and get their face in the newsletter!