Nature accepts no excuses for not doing what you really want in life.
~ Anonymous.
To take a gap year is one of the best things you can do for your mental health, especially if you are not totally satisfied with your current life and job.
You can travel around the world, study for a year, write a book, do voluntary work, learn something new, ... the possibilities are endless. A gap year will also give you the time to think about what you want to do with your life, which is what most people don't find time to do in our hectic modern world.
If you plan well in advance, you can save enough money and even if that does not work, you can do some small fun jobs during your gap year.
Most people are very creative to find excuses not to do something their heart desires. We suggest that you use this creativity to find solutions instead: here you will find a great article with ideas for your travels.
Another absolutely amazing website to help you realise your dreams is Dreamshake. The site is only in French at the moment, but they are working on an English version that should be available soon.
Below you will find literature that should give you more than enough ideas to have fun for a year or even for only a week-end:
Lonely Planet The Gap Year Book
The 4-Hour Workweek: Escape 9-5, Live Anywhere, and Join the New Rich
101 Things to Do Before You Die
101 Things to Do Before You're Old and Boring
Lonely Planet Career Break Book