Struggling with Social Anxiety

does anyone else feel this way? i feel very uncomfortable in social situations outside of my fam. i’m highly sensitive to being negatively judged by others. i’m extremely shy and fear ridicule. i cannot take risks or try new things. i have no friends that i can talk to, i feel anxious even to talk to people online. i hate posting anything on social media; what if they hate my story or picture? what will they think about me? i might look like an idiot. i think i’d feel better if people do not know my existence. when teachers ask questions individually, i literally pray “please don’t say my name, please don’t say my name”. and when my name gets called and i have to stand up, my body shakes, my legs tremble, my heart beats as if it would burst in few seconds. even though i know the answer, i just can’t answer it confidently. after answering, i think for weeks about the incident and feel ashamed. when im just sitting there, i think: what if something wrong with me? how am I dressed? is everybody watching me? do I look ugly? etc. i do not have a single friend that i’m able to tell how i feel. if I speak, what if they judge me? But being quiet is also not an easy task. I feel awkward. everybody is talking and i’m just sitting quietly, listening. i want to share so many things but i can’t. so many of my fellow students are in a relationship. but for me, forget relationships, i could not even make friends that i like.