Can you really grow in your comfort zone?

So let’s take a minute now and think if we really can grow in the comfort zone, and if you still are in your comfort zone, what is it? How is it not letting you grow? To me personally, as I was an introvert growing up, I always refrained from trying anything – I used to go to school, come back home and repeat. See – there is no room I gave myself to grow. I was subconsciously keeping myself for doing anything I definitely was capable of.