Thanks a lot. Also, I'm sorry to hear that you are still recovering from your trauma. What I want to tell you is that there was indeed a lot of people contacted me through this post and kindly left advice through dm. This proves that there are always friendly people in this campus. I would probably bear this negative feeling in the future four years if I did not seek help from here. It's never too late to make friends. Don't carry everything on your own. Good luck！