If you live in the moment, you can experience happiness. If you always worry about what your future is, you will miss the experiences of today. You can't predict the future, but you can change the present.
...very wise. But tell me how do you get past all the pain and humilliation of knowing that your astranged husband, at this very moment, has his dick in another woman, and has been lying about it for the past 20 months without any remorse?