People always talk about glowing up, but they normally mean externally rather than internally. I've curated a list that has a bunch of books for people who want to improve themselves beyond what's on the surface
Known to be one of the best books for people who worry a lot
How To Stop Worrying And Start Living
Basically a guide to upgrading yourself
7 Habits Of Highly Effective People 15th Ed
Title's pretty self-explanatory ;D
Confident As Fu*k: Ditch Bad Vibes & Cultivate
Some amazing advice in here
Becoming Bulletproof: Life Lessons from Secret Service
same author of ‘how to stop worrying and start living’
How to Win Friends and Influence People
Really practical book on overcoming a lot of things from insomnia to anxiety
Cognitive Behavioural Therapy (CBT) Toolkit
You can make this book your own - it has activities in there to build a mindfulness habit tailored to you
The Mindfulness Playbook: Bring Calm & Joy
Another practical guide
Master Your Emotions: Guide to Overcome Negativity