Omg...I can seriously relate to this as I'm also a very sensitive 17 year old teenage girl who is easily overwhelmed by school stress. In my situation, my partner and I had to design a mouse trap car in physics class, but she did not reply to my email regarding when and where to meet up to build the car. So I had to construct it all on my own, which resulted in cramming study time for a math progressive test and computer science test at the last minute. It was the anger and stress that made me cry during physics class the next day, although I was able to hold it in for the first 15 min of class (I had a strong willpower to never cry in front of an adult male). At first I was able to calmly tell my physics teacher about my partner's lack of contribution, but I totally lost it when he confronted me (agreeing on a penalty for my partner) the second time 15 min later. His reaction was basically asking me what's been going on and when I told him everything, he praised me for being a hard-working and talented student in a sympathetic way and offered to extend the project deadline. Like you, I was also extremely embarrassed the whole time (since I cried in front of a male teacher for the first time), even though I kept my voice steady and managed not to sob. The next day, I apologized to my physics teacher (just in case I also made him feel uncomfortable too) as well as expressed my embarrassment. On the positive note, he was very understanding of my stressful situation and even offered help on making any necessary changes to my project. So yeah, that was my story. Trust me, you're not alone. I hope this helps!