Why does no one likes me

I'm 14 year old and barely started high school, I went there with 4 people that i know, but they're all are colleagues at best, and one guy is with me in class, and the other 3 went to classes for people with lower grades (and 2 of them went there because of my fault and i have guilty coinsence when im around them, but that's other story). And everyone met some new friends except me. When people are around each other they seem entertained, happy and opened, but when they are around me they go quiet, and when talking to them, they talk like they were carefully picking words to not hurt me, even my father have a little bit of disappointment in his voice. The guy that went with me to same class, doesn't even want to talk with me, I know he dislikes me, he even told me that he especially found a seat where there was one guy he didn't even know so he won't seat with me, and I think he knows that I am his only option when it comes to socialising in high school. I have no idea what makes me such a unlikeable individual. I tried reading books, watching stupid videos, talking with therapist but they all didn't do shit, I genuinely don't know what to do.