Hi Rosie W
you know, we often here ridicule the saying "just snap out of it" with regards to some 'friends' responding to one depression. Because we cant just "snap out of it"
However, when it comes to anxiety and its symptoms like shortness of breath and panic attacks, sometimes we can take a short break then reconfigure our approach to a hurdle then restart and overcome that hurdle....because its all about out mental state at any one time.
For example- Getting married the first time, about one hour beforehand my chestwas like a rock, my hands sweaty and shaking. I asked my best man to talk to me about cars, our common interest. It took 20 minutes and I was calm and laughing. It worked. Mind diversion.
When we have symptoms that point clearly to anxiety we often dont think that "ime out" will help....we just want to flee.
About your silence. As someone that stopped talking for 3 months at age 12, I can say that your teachers and close friends should be told that you cannot help that and you hope it will be a passing phase. It is likely a defence mechanism and a lot to do with your depressive state. You are not alone with this. I can assure you that it will slowly drift away.
Finally. Take a book with you in school. If you are feeling crappy try reading it, again diverting your mind. My niece, a sufferer of depression takes Game of thones with her. Other students, unaware of her not wanting to talk just think she is reading and dont bother her. She is reading but she is also wanting to be left alone.
Take care. Tony WK