How to fix this issue?

I am trying to write a C++ Program, but am greatly struggling with the copy assignment section. Here's my code:

#include <iostream>
using namespace std;

class CarCounter {
   public:
      CarCounter();
      CarCounter& operator=(const CarCounter& objToCopy);
      void SetCarCount(const int setVal) {
         carCount = setVal;
      }
      int GetCarCount() const {
         return carCount;
      }
   private:
      int carCount;
};

CarCounter::CarCounter() {
   carCount = 0;
}

// FIXME write copy assignment operator

/* Your solution goes here  */
CarCounter& CarCounter::operator=(const CarCounter& objToCopy) {
   CarCounter nobj;
   cout << objToCopy.carCount << endl;
   nobj.carCount =  objToCopy.carCount;
   cout << nobj.carCount << endl;
   cout << *this << endl;
   return *this;
}

int main() {
   CarCounter frontParkingLot;
   CarCounter backParkingLot;

   frontParkingLot.SetCarCount(12);
   backParkingLot = frontParkingLot;

   cout << "Cars counted: " << backParkingLot.GetCarCount();

   return 0;
}

And the output is:
main.cpp: In member function ‘CarCounter& CarCounter::operator=(const CarCounter&)’: main.cpp:30:9: error: no match for ‘operator<<’ (operand types are ‘std::ostream {aka std::basic_ostream}’ and ‘CarCounter’) cout << *this << endl; ~~~~~^~~~~~~~
I know it's probably an obvious rookie mistake, but I'm new to C++. I appreciate all the help I can get. Thanks!