loneliness, anxiety, depression, social can relate?

Social anxiety and I have no friends it's so hard just to talk to people, maintain a simple conversation, I have friends in high school, I feel alone at lunch, you feel sad when I see people in the halls talking and laughing, and I I am part of it. I feel like I'm waisting my youth, instead of going out with friends and have fun, I'm home all the time, afraid to leave. I do not know how other people are easy to socialize. It bothers me when people think I'm in trouble, because I do not talk to anyone, and I am far from being trapped. I am a very friendly and cheerful but I can not prove. Ive cried myself to sleep and feeling depressed every day. is a person in the same or similar situation as me?

I who used to be, so I stopped complaining and I decided to start living my life as I wanted

Social Anxiety Makes Life Lonely