My one wish in my life is to have my parents long life and to be with them forever. I don't wanna lose them in my life 
Tho, we all know that forever doesn't exists.
I know that feel dude, and just few months ago i did something, which helped me to stop thinking about it. If now its still a problem for you, you can ask me in pm Tho, we all know that forever doesn't exists.