As mostvSaiyan children were sent to conquer worlds as infants.
I wasn't, not yet .
I took this opportunity to obsessively train, starting of with basic resistance training, Pushed my body in controlled ways since I was still an adolescent at this point..
Then after a few months outside the incubator, I actively took beatings I knew I could survive.
Saiyans grew stronger from near death experiences thanks to the my beloved Zenkai.
I abused it mercilessly.
Broken ribs,torn muscle. starvation training.
By the time I was five, my power level was still "low" by Saiyan standards being a measly 250 battle power .
But my control was over my body was unnatural based of the fact I can feel and control my ki.
I didn't rage blindly like common low class saiyans.
I remembered Goku's mistakes.
Vegeta's pride.
Gohan's fear.
I would not repeat them to best of my abilities because to honest I need more real world experience .
End of chapter 3