What should i tell my bf or how should i help him?

Today I was at school and i was in one of my cl when i got this text from my bf saying.. this is what he said and this is what i said: me > omg!!! baby r u okay? him> yea hun im fine I just didn't want to come to school today. me> oh y not.. Im very worried about you since you told me you were going to kill your self i was so worried i was shaking and crying so much. him> awww baby! don't cry I love u! im sorry hun i just very suicidal i just wanted to kill my self and you know what babe.. i tried to hang my self but it didn't work. me? omg omg omg. baby no no no .. please don't ever do that again that would break my heart i would do anything for u to be alive i love u to death! him> baby i gotta tell u something while im texting u i just cut my arm i really need u here .. just leave school ditch and come to my house before i die. me> baby stop! don't do it! i need u! please! omg jake!!! and so on.... what do i do... how do i calm him down.