I've been writing D&D games for homebrews, and massive worlds, for years now; I could do the arithmetic but "Lots" seems a good answer. I've got a mix of maps, short modules and long Campaign/Adventure Path length materials. I also take Map Commissions, do blog posts on all sorts of stuff, and in between all of that I do Dad (for 2 girls) and Husband duties.
I've also created the Beta Maxx system of games (with Beta Maxx X, Beta Maxx Death, and Beta Maxxthulhu already created in their first full editions, plus Beta Maxx Theft coming soon) which I hope to bring to Roll20 through a combination of Character Sheets and full games soon.
I'd infinitely prefer to help you sort something out than have you hate what I have made over something technical. And if you do like stuff you've bought, send me some feedback or leave something in the forum. As a writer, you often here so little about your work in feedback.