I've had a lot of good friends leave this world. Friends that i stayed the night at the day before even.
Dealing with a loss can be complicated or it can be easy. Everyone deals with death in a different way.
My brother was sick at a time, like really sick, in the hospital and such. I still have nightmares of visiting him and crying my eyes out, even though he is fine now.
The only encouraging thing i can say to you is: Don't give up, Things will happen and you will want to just quit and wont know wnat to do with yourself. Think of the ones that love you and feed off that affection, and know that when someone leaves this world they were loved by people the same way and they wont be forgotten. Just like you and me and everyone.