Hi Nocolas.
Never give up, yo are not wrong, there is nothing wrong about you, I'm sure you are a great guy, you just need good people around you, and that's what you are missing, you "only friend" maybe never was your friend. You need to chage your points o views. The best thing you did, is quiting video games, accepting depression it's not easy, and you did it, go for a walk every day for a week, for 30 minutes, and then start running, focused your self in the way you feel the air, the sounds, this is good. Do some breathing therapy, look on YouTube to do the right way of breathing exersice. You can also made a list of 10 positives things, like, artist, kindness, tolerant, helper, music, singer, etc.... choose one every day and play what you choose, you can sing loud, I don't know you, but I don't care if people see me, if you don't feel comfortable, do it in your room, but loud. Eat healthy food, flours, processed foods and sugary foods, are not a good help for depression.
Life is beautiful, you need to see it, and enjoy it every day, there is a lot of people out side, different cultures, places, foods, smiles etc. Turn on your computer, put the music on and dance, I know you Don feel like doing it, but do the opposite, let's play the opposite day.
Please do it!
You are not alone in this, get busy, busy, painting helps a lot, but exersice os much better, go and find a friend...
You take care a lot, God will hide you, he has reserved something special to you, you need to believe in him, and in your self.
With love.
Janet.
Ps. I'm fighting PSTD, panics attacks, I have my ups and downs, I am not with meds yet, I need to take care of my folic acid first, then I can have medication, please go and see a doctor, they will help you, go to church too, some times you just need to be close to God.