Balance out the good things and the bad that have happened in your life and you will have to acknowledge that you are still way ahead. You are unhappy because you have lost those things in which you took pleasure? But you can also take comfort in the likelihood that what is now making you miserable will also pass away.
Boethius...Whose souls, albeit in a cloudy memory, yet seek back their good, but, like drunk men, know not the road home.
BoethiusIn omni adversitate fortunรฆ, infelicissimum genus est infortunii fuisse felicem In every adversity of fortune, to have been happy is the most unhappy kind of misfortune.
Boethius