Please help idk wats wrong wit me anymore

I cnt take this anymore. Wenever i can i lock myself in my room lay in bed cry and cut myself. the pain makes me feel numb inside ihave scars on my wrist arms shoulders and stomach i also have burn marks on my skin from the few times ive intentionaly burned myself.tne pain seems to drive off the feelings of sadness and anger but aftr awhile seeing the scars just fill me wit more rage and self hatred wich just leads to me doing it all ovr again. Icnt stop myself. And it seems like im isolating myself. Icnt handle dealing wit actual people anymore. My friends will txt me asking to hangout and il make up some exuse becuase being around them seeing them happy makes me more depressed it makes me feel broken and wen im arond them its like they expect me to act happy too and ijust dnt have it in me to fake a smile anymore. It seems like lately all i do is cry and cut myself. And its all i realy want to do idnt want to see anyone idnt want to see how happy they are and feel like theres something Wrong wit me liked im not as gud as they are. see their happy family and feel jealous cus mines broken, becuase il never be loved and cared about by anyone like they are. Wen im at skool all of the people around me ijust cnt deal wit it ifeel anxious then its like im having trouble breathing and evrything around me is just so overwelming ihav to run into a stall and cut to calm myself down. And if anyone tries to talk to me il explode its like half the time im drowning in sadness and the other im ovrcome by rage. I just feel so miserable and no mattr wat i do it just gets worse. If anyone has an y idea how ican end this pain please help ijust want it to be over