Most guys do it 1-5 times a week so try to get within that range
You are not "the worst person in the universe". Many (most?) guys your age get into some pornography. Cut down on masturbation or quit altogether, if that's what you want, but know that it is a normal activity. However, it would be good if you could get out and do other fun things with guys and gals your age with hobbies, sports, or other pastimes.