How to find, of course, is to find like-minded people to live with, have a better attitude and understand each other. How can there be difficulties?
As mentioned above, you have to master it yourself in this life. I really want to see if my life is bad, and then see if the personalities of both sides will meet.
Don't worry too much, as long as the two are concentric, they can generally be combined and will not interfere with each other. Just look for it by feeling.
Good luck and a happy marriage!