Reincarnated into a child - male protagonists

Main character has lived many lives. He’s a baby to 6 years old atm.

He has powers related to his past experiences, and they help him grow in fame towards being a celebrity/actor

Romance: not yet.

Same artist as who made me a princess

Cute childhood best friends that are reunited when older kinda trope.

Ordinary girl x rich boy

I mean usually this would be romance but one of the mc is a male and their a child so it fits to me :P

Romance: yes

Mc failed his path as an actor. As his looks and acting are just average

He goes back in time and decides to get famous while he’s still considered cute and a child actor

-fixed past life mistakes
-acting
-modeling
-past life