Breakfast, lunch and dinner...

It depends on what you mean by “you”.

The continuum of conscious awareness interacts with the river of organisms. “When you die” is not a meaningful concept. Your true self is that continuum of awareness.

Of course if by “you” you mean one of the frail and temporary organisms with its particular set of memories, emotions and genes, then “you” will no longer exist. On the other hand, the sense of existence as an individual body was nothing but an illusion anyway so nothing is lost.

The hospital staff clean up your room and another patient is brought in.

Your matter and your energy scatters away.

This meme explains it all very nicely.

your body dies but your consciousness rejoins the whole.

You rot and smell worse that the baddest, stinkiest fart you ever let loose in your whole lifetime. After a while you may push up a few daisies, tulips and morning glories that smell much better.