Back again (anxiety over death)

I posted here a year ago about how anxious i was over death and how it made my life feel completely pointless, and what people said did eventually help!! I wasnt scared i felt comforted in the idea that when you get older you usually become tired of living and i used that to combat my feelings.

Eventually now its gotten bad again as im in my last summer before i leave highschool

Im scared of not living, im scared of it so bad its making me feel sick, cry and im losing interest in my hobbies again.

The only thing keeping me from thinking is constant distractions, but i know in the long run i cant keep myself cosntantly distracted what do i do??