With a lot of stress these few minuits will not help you. The kind of stress you described is not just stress but there is way more going on. Better ask yourself what, work out what is causing you that miserable feeling you need to cry. Work, find solutions and stop feeling sorry for yourself. You are not the only one. Many people feel lost and have to do it without family and friends in a sick body. Only if you taje responsibility for your own lufe and happiness you will feel satisfied and can be proud on yourself. Besides it is sciecetific proved stress is not negative