screens/MyProfileStack.js

import React from 'react';
import {createNativeStackNavigator} from '@react-navigation/native-stack';
import MyProfileScreen from './MyProfileScreen';

const Stack = createNativeStackNavigator();

function MyProfileStack() {
  return (
    <Stack.Navigator>
      <Stack.Screen name="MyProfile" component={MyProfileScreen} />
    </Stack.Navigator>
  );
}

export default MyProfileStack;

4개 컴포넌트가 모두 준비됐나요? 이제 MainTab에서 HomeStack과 MyProfileStack을 불러와 넣어주세요.