You are not “doomed.” Life is difficult for you now but it will not always be this way. I would encourage you to be with others whenever possible. Do not isolate yourself. Isolation can exacerbate depression. Being in the presence of others will allow you to practice your social skills and it can distract you from negative or depressing thoughts.
Consider becoming involved with social activities, including: clubs, sporting events, camping or joining a group, etc. The idea is to involve yourself in activities that foster a connection with others or that will decrease the amount of time spent alone. The less time you spent alone the better you will feel. Other ways to distract yourself from negative thinking and to promote self-growth include: watching movies, reading books, writing in a journal, writing fiction stories, painting, drawing, and so forth.
I would also encourage you to speak to your parents about how you are feeling. They may be able to help but can’t if they are unaware that a problem exists. If the problem continues, ask your parents to take you to a therapist. The therapist can assist you with social skill development and he or she can determine if you have depression. I wish you the best of luck. Please take care.