Rather than a blog, you could look into creating an "evergreen" website. Instead of having to produce pages and information on a fixed schedule, you can work with your energy levels to create pages that will stand the test of time. I can recommend Sitesell as I've been using them for 13 years - the subscription and web hosting price is $300 a year (and that price has not changed in all the years I've been using them!) regardless of how well your site does. They're always adding to their tools and functionality, nearly always without an extra charge - I think I only paid an extra $50 one time. Their aim is to help you build a successful web business rather than a pretty looking site - so they have a special Brainstorming tool so you can see which topics are of interest to people searching the web. Their forums are as helpful as permies.com, and have people weighing in from all over the world.
Due to life taking me in a different direction, and not having a dog anymore, I haven't done much with my site for the past 6 years so it's not the best example (www.make-and-build-dog-stuff.com) but am still making enough ROI that I haven't scrapped it. It did help carry my hubby and me through a number of lean years and got him out of the rat race. It's not a get-rich-quick scheme but can start making you money in the first year, if you follow their Action Guide. Here's a link with more information: https://case-studies.sitesell.com/?gclid=EAIaIQobChMIxa3k3dWQ5AIVDcJkCh0uOAxMEAAYASABEgJX-PD_BwE
- Patty, the first case study mentioned, used to live near me and she mentored me for a short while. Like her, I started out with no web knowledge other than how to type and do email. I'd never taken a digital photo...
Anyway, all the best to you and hopefully that tumor will disappear and you'll get back more of your energy.