I feel lonely

even though i have a family friends i feel incredibly lonely. My friend gets all the attention and it seems so unfair because everything she dose she gets praised but when i do the same thing "nobody cares". She mainly gets attention from my male teacher and i always crave attention just a little bit. My dad wasn't the happiest person, he would compare me to other kids or fat shame me on how i look so i thought my teacher would be kinda like my dad but he was nothing like that. My mum was a great but she would call me names like "your a mess" or "your lazy". My friend only cared about my friend sophie and it really irritated me because sophie was new and i been friends with my friend for 4 yrs and she just left me out. It is really unfair because everyone always asks her if shes fine but never me. The only time she really talk to me if she needed to vent or if sophie wasn't here.