The next job, the next move, the next town may not be the thing we need. The "grass" may not be as "green" as it seems. The energy spent on wanting what is "just over the fence" takes away from what you have.
I grew up in Florida and traveled with my family during summer vacations, often to North Carolina to visit grandparents. I always wanted more adventure, to fly to an exotic location, and live an interesting life. In college I got that opportunity. I completed a teaching practice in England. Here was my big chance to have more.
While finishing my education degree in England I travelled and was thrilled with the exciting life abroad. I met my now ex-husband there and after graduating from college I returned to England and got married. I remember being so exited that I was going to live abroad permanently and travel often, I felt like I was running away to start a new life. I started teaching, had children, went on some family vacations, mostly to Florida. I discovered my life wasn't much different to what it had been in Florida. It was the same life, different accent.
This was not what split my ex-husband and I up, that is a whole other story, but it contributed to my attitude of always looking for something else. It has taken me many years and a lot of mistakes to finally realize that I already have what I'm looking for and it isn't on the other side of the "fence." It is within me. It takes time and patience to find it. It may not be exactly what you want and it may need to be honed, but it is there.
Remember, you may think the grass is greener somewhere else, but in the famous words of Erma Bombeck, "The grass is always greener over the septic tank."