College has literally destroyed me

College has literally destroyed me Hey everyone hope your all doing better than me haha! I'm 16m in college (in the uk) and ofcourse we're in the holidays now haha. But the last day of college wqs one of the worst days i ever lived. We had to read a presentation out to the entire class. A literal nightmare for me. I only had to read a paragraph as we was working in groups but it went bad. Before I started reading a person who I considered a 'friend' literally said to someone " I bet (my name) is going to say (then proceeds to mock my stutter)". The worst part came to when I actually read the paragraph. I managed to summarise it down to one sentence but stuttered like 3 times and when I was done I could just see a few people smiling and trying not to laugh at me😭😭. Guess I'm posting on here for advice or to vent. How do I deal with this cause I've just not been the same ever since and hate it.