My marriage is over

My marriage is over.. there is no more hope he is done and i am devastated.. how am I supposed to go on.. how and I supposed to act like everything is okay for my kids.. i just want to die my heart has shattered in a million pieces.. wtf am I supposed to do.. i just want my husband and he doesn’t want me anymore.. stupid me.. i should have known that I wasn’t worth anything.. all i have to offer is sex.. I cannot do anything right.. this is all over and it’s all my fault.. perfect finish to a shitty ass year