Depends on how you define death. If death is only physical and biological, then no, you are very much alive.

If death is metaphorical yes, we die and we are reborn every second. We live in constant state of transformation, not crossing the same river twice and all that.

To me time seems to be just an illusion that we exist inside of due to the nature of how our ego functions. Have you ever considered time to be more like a statue? That's how I feel. Every moment exists infinitely, like it's hanging right there in space time, and so it isn't the same as death, but more like a distance we can't cross.

I don't think strangers on the internet will provide you with answers. You will need to put in the work yourself to get an answer.

Questions for you: Are you your environment? Are you your hands? Are you your thoughts? Are you your emotions? Are you your subconscious? Are you your memories?
Are you the experience that you experience? Or are you the part that experiences?
Can you see that part? Does that part changes over time?

I would recommend reading philosophy books and ponder about this stuff.

You can go to past, but nobody is there anymore

I think you’re growing (though not always for the better) at least as much as you’re “dying”. I say “at least” because you understand more and have more life experience, and, in many cases, you’re better able to appreciate things than you were when you were younger.

Your personality undergoes too much change to simply describe it as “dying”. That’s only half of what’s going on.