content

What makes a person content?

I don't make as much money as a lot of my coworkers. I struggle with this on a regular basis. Yesterday I had a realization that money doens't make people content. This idea is everywhere, but it really hit me. I looked around at the people I work with and realized the ones who make more are not happier. Their lives aren't easier. They feel underpaid like I do. In a lot of cases they are MORE stressed out with their finances.

I want to defy this standard. I want to be content with what I have now. I feel motivated to tackle this obstacle whole-heartedly. How do I keep myself from sliding back down into the I-deserve-more-mode? Any suggestions?