There is such a high divorce rate because people aren't like you. They simply walk out of a marriage when trouble appears. Holding on and trying to save your marriage means that you are a noble person who doesn't believe that marriages are "come and go" things, and sees a marriage as a sacred bond between two people which is meant to last until eternity.

I have been in your situation, and my situation in particular seemed completely hopeless. Initially I did all the wrong things and ended up doing more harm than good to my marriage - but then, I was taught how to reverse this situation. And now I have my marriage back! So, I have some very valuable advice to give to you.

First of all, most people you ask will say that you should communicate with your spouse and talk about the marriage. Of course, the key to marriage success is communication, but when you are directly facing a divorce, this means that the time for talking is over. From now on, any attempt on "talking" the issue with your spouse will end up you begging him or her for forgiveness - which is a big no-no when it comes to save your marriage.

In fact, this is the opposite of what you should do to stop your divorce - simply put, you should make yourself less accessible and "harder to have" for your spouse. The reason is simple - people want what they can't have. Moreover, your spouse is already fed up with you and the marriage right now. So the best thing to do is to reverse that by making yourself less accessible to your spouse. 

For example, you might go out with friends in the morning and not come back until it's late evening. Subconsciously this makes your spouse "miss" you because he or she is used to being in complete control of you and having you around!

Utilizing this principle helped me greatly in my efforts on saving my marriage - and if you are able to pull it off the right way, it will help yours too!