Don't give up, keep pressing onward and doing your best.
Think of the medicine as this instead; You're diagnosed with a sickness that affects your body and the way it functions and the pills usually help reduce the effects of this illness on you. If you are experiencing emotional and mental turmoil from previous traumatic events, continue going to counseling and do your best to open up about these issues with the counselor so that they can help you. If you really feel like there is too much money being spent on counseling then i would spend some time with your mother trying to research some options on where you can get counseling maybe for free, and if not for free, at least at a reduced cost or even another alternative i'm not aware of like some sort of mental health program.
For the social interactions, try maybe asking your counselor for help.
And don't ever seclude yourself completely when dealing with depression. It gets a lot harder to fight on your own. Even talking to your parents could help reduce some of the pain.
You are somebody. If you don't think you're good at something, try hobbies here and there to keep your mind busy. Stick with something you personally enjoy and naturally it will help connect you to people with the same interests, and if you do it for long enough you might even get good at it. If you want to become good at it, maybe read about people's guides to the hobbies. (note: it takes a long while for the average person to become good at anything, from weeks and months, to even years, so don't beat yourself up if you don't get something the first few times around.)
No one is ever asked to be brought into life, but since you're here, you might as well make the best of it right? Try to find the small things in life that appeal to you and indulge in them as long as it doesn't promote unhealthy behavior such as abuse towards yourself, others, or abuse pertaining to drugs.
Take a breather and take a day to let it all out. Ask to talk to your parents and tell your parents how you feel. I'm sure your mother would rather you come to her and share your feelings instead of hiding away and cutting yourself off from her.
