Actually once in a while in our lifetime we do have such a situation we are by you have a chaos mind thinking, it's not a bad thing neither is it good but it's normal, just as you said I think when one find himself in this type of situation the best thing the person should do is to think away from such situation he or she finds himself or herself in for example if it's about a family problem then the person should think about sports or probably considering watching a movie so the person can actually free up his or her mind from that which is disturbing him or her, by so doing we give the mind some rest which is what he deserves.