I don't know if you're being serious or not, but this is actually a profound point that a lot of people don't seem to grasp (maybe because they don't really believe in death being final).
If you take this point seriously then it follows that there is only one important thing to do before you choose to die: Make sure your friends and family understand your choice and can live with it.
If you take this point seriously then it follows that there is only one important thing to do before you choose to die: Make sure your friends and family understand your choice and can live with it.