The idea of going to therapy does scare most people. After all, what good can it do to talk over your feelings "with a stranger?" The truth of the matter is that it is immensely helpful to just talk to someone about your deepest thoughts without the fear of being judged, or of others hearing about what you say through gossip, or without having to think about what the other person thinks about you and what you are saying. It is incredibly cathartic and I urge you to do whatever it takes to face down the fear and discomfort the idea brings you and go to a counsellor.
If you just can't do this right now, I urge you to at least remain open to the idea. Ease into the counselling thing with a counselling telephone line. Contrary to popular belief, you can call more than once, and you can be a regular caller. Beware though, these lines are usually manned by well-meaning people, not necessarily trained psychologists. Use these lines more as a "cleansing" thing and not as actual counselling and you should be OK. Once you are used to talking on the phone to a stranger, it may become easier to imagine yourself talking to a real person.
It may even help you to talk to a parent or trusted relative before going to counselling, just to get used to talking face-to-face. For many teens, talking to their parents about their inner demons can seem counter productive. It may surprise you to learn that teens who have open relationships with their parents and who feel they can go to their parents with any issue, lead happier lives. While in reality, talking to ones parents is not always an option (i.e. - situations of abuse, neglect, parental illness, parents being dead, etc...) if the only thing that keeps you from talking to your parents in the normal teenaged struggle for independence, let down your guard and let them help you. Parents can be a strong ally when you go to counselling. I don't think that a good chat with your parents can replace counselling for most people, but having an openness with them about what is happening in your world can make everything easier to face -- including a counsellor.
If/when (and you should) you go to a counsellor remember the following things: Counselling Facts
I do hope that you can find it in you to take a leap of faith and go to a counsellor. It is only frightening to you because it is "the unknown" and because society still views people in therapy as "not normal". Let me assure you that reaching out for help, even when you aren't certain you really need it, is very normal. Accepting that others may see things about your life that you are too close to the situation to see for yourself, takes great strength. As long as you remember that a counsellor is there to help you, and that if you feel you are not being helped you are free to find a new counsellor, you will do fine. Therapy can give you back enjoyment of your life, and isn't that worth it?
Important note: not all counsellors are trained in psychology or psychiatry. Peer counsellors, volunteer counsellors, crisis line counsellors and church group counsellors are examples of people who may legitimately offer you help, but who may not be formally trained in the science of psychology. It is best to use these types of counsellors in conjunction with a psychologist or psychiatrist when dealing with something as serious as depression.