I need advice

This isn’t necessarily about Christianity but I really want answers from Christians specifically because I don’t want secular advice. Anyways.

I keep feeling like time is just moving too fast sure Im young right now but I won’t be forever soon enough I’ll be like 60 before I even realize it and every moment ever just turns into a memory, what’s the point of doing things that go by so quickly and how do I stop feeling like time is fleeing from me. Also anyone I love could die at any moment and I won’t be prepared foe that even if it isn’t random. And before you like give me a Bible verse and say “don’t think about it so much” trust me if I could do that I would.