I transmigrated to kill the hero

A ten-year-old child who had endured bullying and hardship throughout his life, going days without food, lost the only person he held dear
He had lost all purpose in life, but his mother's last words had made a significant difference in him.
he swore that he would do anything for survival and for himself.
when he died in a dog-like manner, no one cared.

but instead of death he got another chance by a goddess .
An opportunity to bring his mother back from death.

but for that he have to complete one mission.
that is to kill the hero of another world.
and for that he would be transmigrated to trash of a duke family.

Is it possible for a 10-year-old mature child who has transmigrated to a 30-tear-old immature trash to kill the 30-tear-old hero who has reincarnated and now 10 years old?