That's sensible. I've only one book selling a couple copies each day but I've had a lot to deal with this year so not managed much. I would also like to work across various platforms so it's less "all eggs in one basket". Lots of ideas but never the time. If I manage to get a good income going, I'll consider doing publishing/selling full time after I next remortgage in a few years. Really pleased it's going well for you!I'm hoping so, but probably not for a few years. I need to get a mortgage first with my current income.
I've also started listing a few things on Etsy, merch and redbubble. Only had a few sales as I've not concentrated much on it yet, but I'm trying to build up an income on multiple platforms.