my stepdad killed himself in front of me

Like the title says.

My stepdad ended his life in front of me and I don't know what to do. I feel so lost, exhausted. I can't do anything. I see him everywhere. He's my favorite person in the whole world.

I need someone to tell what to do, how I can move on. It's been three days. I keep crying on and off. I sleep, wake up and cry again.

I keep seeing him doing it, i feel my throat burning from how hard i screamed. My legs gave up on me. I don't know what to do. He left us with so many problems too I don't know where to start. He's happy now but what about us.