So sorry you are feeling isolated from others. I'm 52 years old so I have a lot of experience regarding the raising of a child and social anxiety. First of all, killing yourself may cease the pain you are feeling, but it will create ripple affects that you cannot imagine. Suicide is not the answer to your problem.

All of us were born for a specific purpose. It is likely that no one will know that purpose until we transition after life, but I firmly believe that if we cut our lives short, we will be sent back for the purpose until we fulfill it. I have no evidence of my belief, but I have talked with a number of people who tried to commit suicide, failed, had a near death experience as a result, and were told this. Can't say it's true or not true but I personally believe it.

Secondly, your parents are either very stupid, cruel, or scared to say what was said. My guess is they are too scared to confront the reality of your action and are acting in a bravado manner to deal with it.

Third, the question you need to ask yourself is why are you so shy? Do you not believe you count and have a voice? Are you afraid of making a mistake? Are you afraid something terrible will happen? It is a fact that most people are more afraid of public speaking than death. Why? After all is said and done, the most important opinion we will hold is the one we hold about ourselves. Ask yourself what is the WORST thing that will happen if you go beyond your comfort zone, and speak your truth? Others may not agree or even laugh. So what? Why is their opinion worth more than your own?

I recommend the following two books, that may help you. The Six Pillars of Self Esteem by Nathaniel Branden, and Quiet, The Power of Introverts in a World that can't Stop Talking, by Susan Cain.

Good luck and let me know you are doing. I care and so do others. You are not alone.