It's an ecosystem. Get your finances in order, declutter your things, calm your body and mind, and maintain a spiritual core through prayer and meditation.
For those of you in job transition, I coauthored this guide book with my colleague David King called “High Performance Interviewing”. You can download a free PDF of the book here: HPI Book
We have also found these resources very useful:
Finance:
The Total Money Makeover, by Dave Ramsey
Decluttering:
Goodbye, Things: The New Japanese Minimalism, by Fumio Sasaki
Let It Go: Downsizing Your Way to A Richer, Happier Life, by Peter Walsh
The More of Less: Finding the Life You Want Under Everything You Own, by Joshua Becker
Mindfulness:
Real Happiness: The Power of Meditation: A 28-Day Program, by Sharon Salzburg