2 - One day at a time
The good news about being a baby is that she can sleep all she wants.
Her needs are taken care of for her.
The bad news about being reborn as a 21-year-old baby is that she loses her independence. Her mobility.
And most importantly, the worst part, is that she can change the future or at least warn people of the impending doom.
So Haruno Sakura gurgles.
She swings her arms and feet, promoting muscle growth and trunk control.
She meditates and circles her chakra through her network faster and faster. She will not lose her perfect chakra control. And she most definitely will have a larger chakra pool before she starts at the academy.
Sakura sucks her pacifier and closes her eyes, letting her body run on autopilot.
Despite her temper, she had the best patience on her team. Waiting out Kakashi-sensei, learning Uchiha grunts, and growing up with Naruto ensured that.
She can’t tell how long it’s been since she has been reborn, but she is confident that she is in Konoha. She’s drifting off into sleep once again in her mother’s arms when she hears:
“Haha-ue!”