najeff2:
Moreover, we checked whether or not the capacitive switch recognizes human touch; which we found out that it does indeed recognize it (based on the capacitive switch test).
Please explain exactly what you mean by "capacitive switch test".
najeff2:
No values showed up in the serial monitor when we uploaded the code above.
There's no prints to serial in your sketch. Maybe there are some in the libraries, I wouldn't know because you didn't provide any information about them. An extremely valuable technique for troubleshooting is to add debug Serial.println() statements throughout your sketch so that you can see what's actually happening. You can always remove or disable them later when things are working correctly.