How do you overcome the fear of standing out academically when others make fun of your efforts in college?

My ex boyfriend dumped me because I didn’t wanna pda in front of everyone and claimed I was stalking a man I used to find attractive and yelled at me because I don’t remember stalking him. Was I in the wrong?
Why are so many U.S. traffic lights designed so that one left-turning car can stop an entire lane? Who thought this was efficient?
What's one unexpected moment of feeling truly at home you've had while traveling for work?
What is one simple habit that immediately makes people more receptive to what you are saying?