RETURN OF THE PARENT ROTP

"Well, I guess this is as far as I've come, I'd like to say I lived well but that would be lying to myself, (sigh) how many regrets, but that's it, it's all over when you die." (or so I thought when I thought I would die).
Morgan Bale was a normal boy who was a medical student, he had a good life, a nice girlfriend with whom he had promised to marry, although he grew up as an orphan but he didn't let that stop him from being happy, a really good life, but one day everything changed.
On planet earth came the balancers, those in charge of keeping life at bay that spreads through the universe, luckily they do not destroy planets as they want:
"May the fittest survive".
They selected the best specimen of each planet with intelligent life of a region of the universe, this time the Dreus Raslor sector, and yes, here is the earth (what luck), the subject with the best physical potential and the ability to control one of the source energies of the universe would be selected to fight to the death in the Krimshan, or as we humans call it the tournament of destruction, and yes, I was the chosen one, Morgan Bale (what luck), who would say that a simple medical student who barely exercised would be the human with the best potential on earth.
Wait, this already happened 100,000 years ago, and as you can imagine I won the tournament, I saved the earth, I am a hero, a hero killed in battle, I did not achieve my dream of becoming a pediatrician to help children in need, I did not fulfill the promise of marrying the woman I love.
Stop right there, don't expect this to be the main story, I'm not going to tell you my tragedies.
"Do I regret it?"
Of course you do!!!
But I can't do anything, I'm already dead.
Wait, I'm not dead!!!, what happened?
Well, to live again, (lucky me).