OP might not be 20 years old yet, so if they show some signs of immaturity, let’s face it, it is rather normal/typical.
Just want to say, whatever the disappointment you feel today, you have the biggest advantage many of us will ever have again, your youth. Take some of the older folks advices, please. There might be many challenging opportunities and intellectual equals around you, seek them out, at least till you transfer out to greener pastures.
Good luck.