Newly diagnosed with Inattentive ADHD at 22. Any book recommendations for a broke student?

Hi everyone! I was finally diagnosed with ADHD Inattentive type this year at 22. While it’s a relief to have an answer, I’m really struggling to manage the internal side of things. I'm specifically dealing with a lot of mood swings, decision paralysis, and the strain that my symptoms put on my social life and friendships.

Since I’m a broke student and therapy isn’t an option right now, I want to deep-dive into some reading to understand my brain better. I’m looking for book recommendations that specifically cover emotional regulation and how to navigate social relationships when you're easily overwhelmed. I'd also love anything that helps with executive dysfunction and the struggle of making big decisions.

Thank you so much in advance for any help you can give! :)