Your friendships should make you better not worse. Take a good look at yourself. Are you doing the right things in your life? Are you doing things that make you happy? If you are not, take a look at your life and the people in it. Is there anyone that is a source of negativity? If there is, you have to cut ties with that person. You have one live to live why be miserable? Toxic people make for a toxic life. Get rid of them you will be much happier.