Mixing Secrets for the Small Studio
I personally found this to be pretty helpful.
there are also no shortage of tutorial videos online for all kinds of recording topics. a lot of the info will probably sound like a foreign language, but the more you watch the more it will all start to come together.
outside of that, just keep "bumbling about" and you'll figure a lot out on your own.
r/audioengineering will be a good resource for specific questions.
This one by Mike Senior