Just to say, this answer is phrased in such a way that you can’t expect anyone to answer it who thinks that something may happen after death. But of course many people are of the view that a lot happens after you die, including many scientists. Some are sure, some keep an open mind. For a more neutrally stated but similar question see Is there life after death?

And actually there is a way of reasoning that turns your question on its head. If you imagine that nothing happens after you die - what happens to your life as it is now? If after you die, there is no you who experienced it, then surely from your point of view, it is as if it never happened at that point. There is no you to have any view on the matter indeed.

So how can it be happening now?

That can be an interesting argument to ponder over, may get a few people thinking a bit about it.

And science certainly doesn’t prove that nothing happens after you die. There are many scientists with a very wide range of views on this matter and they don’t find any conflict with science. We just aren’t at the stage in science where we can apply it to questions like this in a meaningful way. We can prove of course that our bodies decompose after we die. We can study that whole process of decomposition too, find out what happens to the atoms and materials of which our body is made. But nobody denies that, surely. And science can’t do any more than that at present.

For more on this see my answer to Is there life after death?