You will definitely come out the other side a better person if you look in that mirror and do some work on yourself. Married, divorced, whatever, you will be a better person.
I've worked really hard to change lots of my little personality quirks (haha) over the last year and a half, and am much better off.
"Success is the sum of small efforts, repeated day in and day out." Robert Collier
"One's best success often comes after their greatest disappointments." Henry Ward Beecher