Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry much. All these given thoughts are just normal for every person like you. You are obsessive. That is all. These are called obsessive thoughts. Brain (mind) is made for its own functions and its duty is to think. Therefore you cannot stop it from thinking. But you definitely can control the way it thinks by diverting its attention to more demanding things. Creative thinking should help brain diverting. If you try to forcefully overcome obsessive thoughts, it will come back every now and then and disturb you more vehemently. Rather, this is just disappointment. Disappointment which arises out of unforeseen life events do bring such symptoms like sadness, irritation, anger, lethargy, lack of interest, lack of appetite etc. Please understand this fact and make sure to introspect. Talking to your friends, out door activities and being creative should give you relief. Find the reason for your disappointment and consult a psychologist if need be. Psychotherapy techniques should suit your requirement. If you require more of my help in this aspect, Please post a direct question to me in this URL. http://goo.gl/aYW2pR. Make sure that you include every minute details possible. I shall prescribe the needed psychotherapy techniques. Hope this answers your query. Available for further clarifications. Good luck.