Thank you for your question and welcome to Health Central's Anxiety Community.

I am not a medical professional and would not be able to tell you whether or not you have an anxiety disorder.

I can tell you that many 17 year olds wonder and worry about their future and what it may hold for them. However, if your worrying is causing you stress or interfering with your life, it may be time to talk with your doctor. Because anxiety is a medical condition, only a doctor or medical professional would be able to complete an evaluation and determine if your symptoms are consistent with an anxiety disorder. Being anxious does not necessarily mean you have an anxiety disorder, everyone becomes anxious from time to time, it would depend on the severity of your symptoms and whether or not it interferes with your daily life.

This isn't to minimize your concerns or to say that you don't have an anxiety disorder. I simply wouldn't be able to tell you that one way or another. You would need to talk with a medical professional. I understand that you are hesitant to do. I would suggest start with your parents. Let them know how you feel and what you are going through. You mentioned that you have thrichotillomania. Have you seen a doctor for this? If so, this might be the place to start - talk with your present doctor about what you are going through. 

Eileen