I started out "self-hosting" by paying for self-hosted app instances on PikaPods, but then I learned could get a $5 VPS and run most of the same apps there for less cost overall per month while knowing very little about how it all works (using CapRover on a DigitalOcean VPS).

The main apps I run are Actual Budget (YNAB alternative), Wallabag (read-it-later service), and FreshRSS (RSS aggregator).

I've also been using the VPS to run some scripts daily for my planet site(s): they ingest RSS feeds, regenerate the static site files, and push the files to my static site host (https://pgs.sh) instead of worrying about hosting them myself (threatening the VPS's apps).