so im working on a little project to help me learn more about stings and about linked lists. this is my first time using c++ as i usually use c
i have my header file MyString.h

#pragma once
#include <iostream>
#include <string.h>
#include <cstring>

class String
{
private:
    char* str;
public:
    String();
    String(const char* s);
    ~String();
    char* GetString();
    ////////
    int GetLength()
    {
        return std::strlen(str);
    }
    String& operator = (const char* s);
    char& operator[] (int index);
    String& operator +(String& s);
};

and my MyString.cpp

#include <iostream>
#include <string.h>
#include "MyString.h"
#include <cassert>

String::String()
{
    str = nullptr;
}

String::String(const char* s)
{
    int len = strlen(s);
    str = new char[len+1];
    strcpy(str, s);
}

String::~String()
{
    std::cout << "clean string: ";
    if (str == nullptr)
        std::cout << "nullptr";
    else
        std::cout << str;
    std::cout << "n";
    if (str != nullptr)
        delete [] str;
}

char* String::GetString()
{
    return str;
}

String& String::operator=(const char* s)
{
    // TODO: insert return statement here
    if (str != nullptr)
    {
        delete[] str;
    }
    int len = strlen(s);
    str = new char[len + 1];
    strcpy(str, s);
    return *this;
}

char& String::operator[](int index)
{
    assert(index >= 0 && index < GetLength());

    return str[index];
}

im trying to make it work where if i try this

String s1 = "Hello";
String s2 = "There";
s3 = s1 + s2;
Print(s3.GetString());

it would print as “Hello There”
but im lost on how to write a function where even if i add more strings it automatically formats it and prints it.

i can do this for example

std::string s3 = s1 + " " + s2;

but i dont want to do it for each individual print statement.