Atomic Habits is a good book that might help you (or not).

I use daily habit tracking for my self-care (and also my hobbies). It’s not for everyone but it keeps me grounded.

I don’t know about Linode, but with Hostinger you get a resource cap on CPU usage. If you put your VPS to crunch something you will be throttled down on CPU. I once tried importing Wikipedia on my VPS and had my CPU throttled down. I pay for the cheapest VPS with only one CPU. In this case you don’t really get the “full” VPS to yourself…

There is a book called the four agreements. This book helped me a lot.