How to make an immersive first person in godot?

Hello, I'm Emi! Currently I am an Amateur developer who is experimenting with various things, I wanted to know how to make an immersive first person, that is, to see the body and arms but without interfering with the model, one of the options they told me was to separate the arms and delete the head, or another to directly delete the head, but the truth is I wouldn't know how to do it, I wanted your opinion as well as advice: what nodes or tips can I use? Sorry for my English, it's not very good. Oh, and soon I'll finish high school and start studying what I always wanted, video game design and development, HAHAHA I'm only saying this because I'm excited, all I can do is say thank you for your tips or advice...