TS, you CANNOT change your situation. You CANNOT change your
classmates. But you can change YOUSELF.
I mean your own thinking. From your post, it is quite obvious
that you are being affected psychologically due to these
teasing.
I am also a person who has some physical problems so i think i
can know what you are going through. Important thing here is you
should not be affected by it. By feeling sad, introverted and
getting taciturn would affect you alot not only presently but your
everything- circle of friends, your future gf, your character, how
you work with people.
Therefore you should tell yourself NOT to be affected by their
teasing/insulting whenever they do so. Know that these
childish people will go out of your life later on. However, that
character change in your(introverted) would probably affect you
your whole life time.
You can start by affirming youself that you are not
introverted by making more public speeches. In group discussion say
loudly your opinions. That would not only show to them but
unconsiously yourself that you are not at all affected by them;
That you can still achieve in life and not be brought down by their
insults.
