help me pls

i feel rlly drained atm, like i don’t wanna do anything i js wanna be in bed and lay there. i used to be rlly active and go out all the time now i js feel useless my parents always say i'm lazy or i need to try harder even tho i rlly am trying. i only have one friend at school and she has this other friend who she’s now always with i'm js either walking behind them or in-front of them i feel like im invisible. i'm by myself a lot of the time at school bc my friends always off and i hate it. Sometimes i feel like i js wanna runaway and never come back, i js wanna disappear. i feel useless to everyone like when im in a relationship i can’t hold it bc id how i feel and the other person doesn’t like it and then when im not in one i feel alone bc i have no one to talk to and i barely have anyone to talk to as a friend. Schools even more draining bc im failing because my teachers keep leaving and i get no help which makes me feel sm worse abt myself and idk what to do anymore. can someone help me pls