Is it depression. Why am i facing these?

Hie Have a desire to be cured; don't succumb. Inform your loved ones that you are depressed, not about something but everything. If they support you, take them along, if they don't, visit a psychiatrist/neurologist all alone, as soon as possible, so that the damage doesn't manifest itself in your life. Don't fear visiting a doctor, it's a matter of pride to resolve an important issue, and not shame. Consume the medicines on time, don't expect magic. Fill all your time gaps using hobbies, interests, work, studies, entertainment etc, you must not have a second to spare. Don't let your mind be overburdened, share your feelings, insecurities, fears with the few closed ones, or to the God whom you worship, or on sites like Quora, where people listen and connect with your miseries. Make a list of every negative thing in your life. Eliminate them, one by one and cross the items using a red pen. Identify all positive things in your life and remember them daily (your parents, availability of food, shelter and clothing, your education, your breath, healthy body, previous achievements.) See yourself in mirror everyday and shout: 'I am still alive' 'I can still live a wonderful life' 'Nobody can stop me' 'Nothing can break me' (just make sure you don't scare away people) Don't take any stress for any relevant thing like studies, career, everything can wait if it's your health. Be patient. And when you are fully cured, make smile your career, and happiness your goal. Having been so vulnerable and affected by miseries, you now know well what gives you happiness and what gives you stress, keep that in mind for future. And don't forget to help other people going through similar phase.

consult Psychiatrist/ Psychologist

Do Yoga and meditation