It is hard for TeenHealthFX to understand why your doctor would make a statement like that. The fact that you said you are feeling depressed and are asking for help should be enough to warrant a referral to a therapist.
Adolescents who are depressed, or who are under a lot of pressure often resort to "cutting" as a way of relieving tension or expressing anger. While this may seem like it provides some relief, there are many other ways that can provide healthy long-term relief of these symptoms. People who are involved in "cutting" seem to go through a cycle. Pressure builds up, they cut themselves and then they experience guilt, remorse or shame. They tell themselves they will not do it again but when the depression deepens or stress builds up the cycle returns. After time the habit can become compulsive in nature and hard to stop on your own. You also have to be very careful that these cuts do not get infected. A severe infection from a "cutting" can lead to serious medical problems.
TeenHealthFX thinks that it would be a good idea for you to seek out mental health counseling on your own. Try and make an appointment with the person that you had met with before who had helped you “immensely.” Explain to the therapist what has been going on and that you would like to make an appointment to come in and see her/him.
It is very important to get professional guidance to help you get over your self-injurious behaviors and find healthier way to deal with stress or any underlying reasons that causes you to cut. For some additional information about self injury check out Self Abuse Finally Ends.