I'm worried about whether I should believe in Buddhism or Shinto.

Buddhism preaches a methodology for eliminating worries and suffering.

Not limited to Shinto, even those who believe in other gods can use techniques taught by Buddhism.
So, it's OK to believe in both Shinto and Buddhism.
However, in Buddhism, obsession with superstition or ineffective ascetic practices and blind belief is also considered affliction (cause of worry and suffering).
Believing in Shinto can cause trouble and suffering, so it's better not to take Shinto too seriously.

A teacher's words
“You don't learn Japanese or English. What you learn in Japanese or English is important.”

Buddhism is not about learning Buddhism; it's about learning yourself.
“To meditate in Buddhism is to sing oneself” Dogen

Among all the religions in the world, the advantage of Buddhism is that it is a religion whose purpose is not to worship something external that seems to be a god, but rather to encounter this true form of oneself.
I think there are differences depending on the denomination, but I would like you to carefully consider the following words.
“The Buddha did not believe in Buddhism in the first place”

Do you understand this?
This may be misleading, but don't you really think so?
This is because Buddha is not someone who learned what we Japanese people call “Buddhism.”
This is a place where many Japanese people are misunderstood and don't pay attention.

Around the time when the Buddha attained enlightenment and was preaching, there was no such thing as Buddhism. “Buddhist books, get rid of a single Buddhist word” is the teaching of a wise man who simply revealed himself and gained enlightenment.

This is the story of Buddha who looked deeply at himself, saw through the true nature of his thoughts, became free from his thoughts, was saved from all kinds of suffering, and reached his true form.
The disciples who were studying it were not studying “Buddhism.”
I was learning about myself because I wanted to do something about my suffering.
Therefore, what you should learn and believe in is not Buddhism, but yourself.
The essence of Buddhism is to awaken yourself to your true self, be free from all suffering and thoughts, and become Buddha, just like the Buddha.

Nice to meet you, Kinpira-san.
This is Nakamura Taishaku from Tokushima Prefecture, the temple of Dharma and ceiling paintings.

You're at a loss as to whether you should believe in Buddhism or Shinto.

Japan is a rare country in the world where Buddhism and Shinto are fused.
I believe that there are gods in mountains, rivers, and land, and I believe in 800 gods. A grand festival is held to thank them for the good harvest, and they carry a mikoshi. A temple is built next to the shrine. The person who protects the temple is the god of tranquillity who protects the land. We are protecting and protecting each other.

Even in Buddhism, Yamakawa Kusaki explains the true nature of Buddhism. There is a Buddha's heart in both mountains and rivers.

There are differences in fundamental ways of thinking between Buddhism and Shinto, but I think they complement each other in Japan.

Thank you for your question.

Our Japanese ancestors have been to both for over 1000 years. Let's believe that. Even monks pray to God for safe Buddhist practice, right? What's wrong with Kinpira-sama doing both? (Note that only the Jodo Shinshu sect may not recommend praying at a shrine.) There are Shinto shrines in temples such as Sanno Gongen (God) in Mt. Hiei (Buddhism), Koyasan Sha Niutsuhime Shrine, Eiheiji Temple, Hakusan Gongen, Kenchoji Temple, and Hanzobo Gongen.

Rather, in Buddhism, it is only the heart that makes others feel disgusting. Shinto priest said “It's important to have the courage to nod in a different position than yourself” on a TV program called Mobuchakeji. Why don't you learn a wide range of things based on such standards?
In the first place, the feeling of “believing in one religion” is a sense of monotheism like Christianity and Islam. In Thailand, the spiritual belief called pi is syncretized with Buddhism, and in India, the 24th out of the 25 incarnations of the Hindu god Vishnu is syncretized with the feeling that the Buddha is the Buddha. When I go to a Taoist temple in China, I often read a Buddhist sutra called the Kongo Hannya Sutra. It's like that. As you try various things, you will eventually settle down to a place where it naturally calms down.

And in the end, it's not about how it's written in the book, but about what kind of people you meet. I would like you to cherish encounters with good monks and priests without being cut off by religion or denomination. In that sense, I also recommend starting with Buddhism, starting with the relationship at Hasunoha (laughs)