Yeah that'd be a good idea, though not so late you disrupt the lecture :P
I was an emotional wreck last year, I had awful depression and social anxiety. While I still suffer from those I have made a lot of progress.
It changed in actually a very odd way
I was about to do a practical (I do biomed) and I was panicking as I didn't know anyone and it was paired work (this wouldn't bother some but it really triggers my anxiety). I had a panic attack before lab, there was some crying but I a managed to collect myself in time for the lab. Went in, a girl came and sat next to me (as I'm assuming she also knew no one).
I somehow made the first conversation starter (something about some chemical vials, I don't remember exactly). The she told me she wasn't sure what we were supposed to be doing, which was oddly a relief to me as I didn't either so I was able to more comfortable talking to her. I started to get a bit of a "high" which is something I don't usually get, and when I do it's usually after a panic attack. When I'm on a "high" as I like to call it I am pretty fearless, I was talking to people and asking people questions and laughing. And then there was one guy on the bench behind me, my partner and I noticed he had gotten to a part we didn't understand so I took a cheeky gander at his sheet, he caught me
and then he offered to help. That guy is now my main friend on my course.
Sorry if that was a bit too much information