Well, Naruto could also mentor his younger self about the importance of friendship. He's had so many experiences with his friends like Sasuke and Sakura. He might tell his younger self not to take their relationships for granted and how they all contribute to his growth as a ninja.
He might start with basic physical training. You know, like running up mountains or doing a lot of push - ups to build strength. Also, chakra control exercises would be key. He could teach his younger self to focus chakra on different parts of the body for more effective jutsu use.
Well, it could have a huge impact. Naruto, being more experienced, can teach his younger self new jutsus. He might also instill in him a stronger sense of self - belief. For example, he could show his younger self how to better control the chakra of the Nine - Tails. This would make his younger self more confident in battle and in dealing with the village's expectations.
In this kind of fanfiction scenario, Naruto could potentially change a lot of things. He might use his knowledge of future events to prevent certain tragedies. For example, he could try to save his parents or prevent the destruction of the village by Orochimaru earlier. He could also train his younger self more effectively, sharing all the skills he has learned over the years.
In a fanfiction scenario where Naruto meets his younger self, it would be a very unique situation. Naruto might show his younger self some of the new jutsus he's mastered, like the Rasengan variations. His younger self would be eager to learn from him. Also, Naruto could talk to his younger self about his dreams and how he's still holding on to them, even after all the difficulties. This meeting could potentially change the course of his younger self's life, as he could be more determined to reach his goals faster with the knowledge of his future self.
Iruka - sensei could be a mentor. He's always been like a father figure to Naruto, and he might have some simple but delicious home - cooking recipes to teach him. Also, Kakashi. Kakashi has a lot of life experiences and might have come across some unique cooking methods during his travels. He could teach Naruto how to be resourceful in the kitchen. And then there's the old lady who runs the ramen stand. She could show Naruto the secrets of making the perfect ramen.
In this kind of fanfiction, it could lead to some really interesting power dynamics. Naruto might gain new abilities or have a different understanding of his powers at a younger age. Maybe he could use the power of the Juubi to protect the village in ways he couldn't before in the original story.
One possible mentor could be Zabuza. Although he was an enemy at first, in a fanfiction scenario, he could have survived and seen potential in Naruto. Zabuza was a master of assassination techniques, and he could pass on his skills, like silent killing and the use of the Executioner's Blade in a more covert way. Also, Orochimaru might be considered in a very dark fanfiction. He has vast knowledge of jutsu and poisons that could be used in assassinations, but of course, this would be a very dangerous path for Naruto to take.
In fanfiction, this concept would have a huge impact. Naruto's growth would be different. He would have to deal with the power of the Juubi at a time when he is still developing his own identity. This could lead to a different Naruto, one who is more mature in some ways and yet still retains his naivete in others. The story could also explore how the village and its people react to this new Naruto. Some might fear him, while others might see him as a new hope. And in battles, Naruto could potentially defeat enemies much quicker, which would change the overall plot of the Naruto universe in fanfiction.
If Naruto is sealed in his younger self in a fanfic, it could be chaotic. His chakra control might go haywire as his younger body tries to adapt to the sealed future self. The village elders might notice something strange and try to investigate. His training with Iruka Sensei could take a whole new turn as he might show advanced skills too early. This could also have an impact on the Nine - Tails within him. The Nine - Tails might react differently to this new situation, perhaps becoming more or less aggressive depending on how the seal affects Naruto's mental state.