Im too sad

Sometimes i feel like i have this rope inside me and every day my sadness is just cutting each little string that makes up that rope and i feel like everything in my life is falling apart. My boyfriend doesnt give a shit about me. My family has their own shit to deal with. the only person i could talk to was my dad and he's deployed in Iraq and i just dont know what to do because every day i feel closer and closer to just ending it all becausr that rope is just so close to snapping and i dont know if ill be able to save myself this time