Scared of everyone dying

I literally always think about how life would be without my parents and I start freaking out and crying because they are getting older and their health is very bad. I’m lucky they are still around. I cannot stop being so scared and every night I just cry myself to sleep. Then I start thinking about if I don’t wake up the next day and I won’t have this beautiful life anymore 😢😥😥 anyone else every have any thoughts like this? I don’t know what to do to stop me from stressing and crying.

(I’m married and have a 1 year old)