Any rough patch that you're going through right now will smooth out to a tiny wrinkle by the day's end, so you shouldn't waste too much time worrying about things. Turn your thoughts to tomorrow, when all of this will be over and things will be so much better. You can't have a good day every day, but you can certainly choose to focus on positive things instead of negative ones. And if the only positive thing in your life right now is hope, then so be it.