Hello, if you had these symptoms from many years then you probably have personality issues ( impulsive personality). You have also mentioned about unnecessary thought, these may be due to obsessive compulsive disorder,  however more information is required for proper diagnosis. You should consult some Psychiatrist for proper evaluation and management. Many medicines and therapies are available which should definitely help you. Dont let these symptoms to ruin your life and get immediately help from Psychiatrist. Thanks and hope the information will benefit you.Bye.

Hi. Being young dont confuse yourself. You may be emotional but then dont feel yourself low. Confusions and problems  come in everyone's life. You must be able to overcome it. Right time of study play eating exercising and sleeping is needed for being strong from your mind.  Some unexpected which happened in ur life or sudden failures may lead  you to depression. Throw all ur negative thoughts. May be you can go to counselling and get guidance. Ur problems will be solved easily.