Depression is bound to occur as it comes to hand on hand with the preparation phase of any exam that you target and put in a sincere effort To overcome it do the following STOP OVERTHINKING Thinking about something is fine but as it's well said that everything in excess is bad, but at times our mind goes out of control and random thoughts related to results, future, parents, relatives etc. Just gigantically flood our mind, leading to depression For escaping from such a situation you may divert your attention to Music Music is one of the best ways for healing your retarded mind, just pop out wherever you are and play your favourite songs Develop hobbies Do whatever you like, because if you do something you like and achieve a personal goal in your field, it's positive energy will be transferred in your academics too Masturbate Yeah you read it right, though it's a temporary solution but still, it's a solution, you should d