Lama Ole’s answer:
Always think that everything you experience is for the benefit of all beings. Then whatever comes up is useful. There are people who have three times as many thoughts as you; but by learning how the traffic moves, you can help them. As my student, you can always tell yourself, “Everything pleasant is a blessing! Everything difficult is a purification—a liberation that teaches me to help others!” With this, you are always on the right path.
Also make it clear to yourself that the problem wasn’t there before, that it is changing constantly now, and that it will dissolve again later. Then you can look at it with inner distance and develop compassion for those who take problems like that seriously.