I would like to...

Don't try to cheat!

Where is the cheating? After all, you will eventually die of old age... Or your clone will impale you on a tree...
But seriously, the problem is that it's sometimes very difficult to draw the line.
Anyway, I choose a fantasy world. In my version, I would gladly be an elf knight-mage of the land. But not in the dark ages, of course, but in a more normal era for living.
Also, powerful mages live longer.