I’ve written a lot over the years about how hard it is to make a switch in your career, take a cut in pay, or chase your dream job.

Taking that step away from a job you’ve had for a long time and don’t love is tough, but those who take a chance always say it was the best decision they ever made.

What do you need to make a move?

Persistence, self awareness, belief in yourself, endurance, and a willingness to sacrifice. Often following your dream job may mean a cut in pay, so be ready to eat more Ramen noodles and peanut butter.

And, if you are married, there is one other big thing you need. A supportive spouse.

I recently got a letter from a reader of my MSNBC column Young; and he understands this first hand:

“As an actuary, we have everything, job security, good money, and prestige. After working for the same insurance line for 18 years, I am about to jump off the ship and switch gear into something completely different type of insurance. I do this to challenge and develop myself. Its little scary, given that I am taking 30% pay cut with four children’s to take care of. However, my wife has been a champion in my decision. I believe job hunting without your spouse’s support is doom for failure.”

You need all the members of your two-person partnership to be on board with any career decision. It’s critical. You go to work everyday. The money you make impacts how you live. The ups and downs of a new path are often so intense you can become an emotional basket case. Given all that, a wife or husband with a wife or husband that it bitching, not supportive and angry over a move you make will only make your life a living hell.