Leaving alive.... returning dead

The time has come, time to say good bye. I'll be leaving sad. I already die, while you're eating pie. The time has come. Walking through my path, looking up in the sky. I'll be leaving sad. I have to try, hid in the bath. The time has come. My backpack is fat, while I'm dry. I'll be leaving sad. I won't cry, for leaving my cat. The time has come, I'll leaving sad.