folder structure of react native app without redux

I'm struggling with folder structure of my react native app. My app is a simple form app and doesn't use redux. My folder structure is below:

App.js
index.js
package.json

Yes, I didn't add any files... I searched on google, but I found only folder structure with redux. I wrote almost all my code in App.js, but I think it is becoming complex a bit. I want to know where to move logics from App.js.

My App.js is like this:

some import codes here

export default class App extends Component{
  super()
  this.state={//init state}

  initState(){
    //initialize state
    //this is called when the submit button is pushed
  }

  onPress(){
    //this function is called when the submit button is pushed
  }

 render(){
   return(
     //a lot of inputs here like id, name, email, date, comment...
     //I think I can divide these inputs as components
   )
 }

 const styles = StyleSheet.create({
   //style sheets here
 })
}

I want to know

• Where to put my "onPress" or "initState" or some other functions.
• How to divide simple form inputs to components
• Whether I can remove stylesheets from App.js or not and where to put them

Thanks.