Oh, sure, I can talk about this. It's a bit complicated though, so be warned.
At the moment, I have two major income streams. Currently, I draw for traditionally published graphic novels, where I get a big advance before and after and (in theory) royalties. These jobs take up about 80% of my time. For the one I'm currently working on, and have been for the past year or so, paid upfront 17k (minus agent fees). That with various freelance projects and the two patreons (my sfw and nsfw), I made around 60k last year income. A lot of it came from the nsfw patreon.I will be getting the other 17k sometime in the next couple of months as the project finishes.
I do want to be clear, this was a very good year for me. Over double the income of the past 4 or so years where I was completely relying on freelance and gns. I've made the joke that my porn career pays for my comic hobby and it's, uh, not wrong, lol. Taxes were really rough though. Remember to save at least 10% of your income folks! Accountants are worth it!
I've only started writing recently, so it doesn't really compare much to my years long art career, but Part 1 of Temptations has made 1.5k over the past two months, which paid for the editing I got for it so I'm considering that profitable lol. Maybe it will grow, but it really is a passion project. My other big writing project, my webcomic Kingfisher, does not make a lot of money, maybe around 300 per month. Also a big passion project lol.
But for the other half the questions: yes, I always wanted to do art and comics and writing! I love doing it! I've been very lucky that I've had supportive family and found myself in a very stable position money wise that lets me pursue this career and a lovely audience for it. I can't afford to buy a house, but I don't have to worry about rent or groceries, so I'm pretty happy. I want to be able to transition my career to writing more and pitching original stories to publishers rather than just drawing them and maybe experiment more with prose. I also, uh, don't really have a back up career if work super dries up or something drastic happen, so lets hope it all works out, shall we?