Life begins at the end of your comfort zone.
I've learned in my life that it's important to be able to step outside your comfort zone and be challenged with something you're not familiar or accustomed to. That challenge will allow you to see what you can do.
I'm continually trying to make choices that put me against my own comfort zone. As long as you're uncomfortable, it means you're growing.
Move out of your comfort zone. You can only grow if you are willing to feel awkward and uncomfortable when you try something new.
The further you get away from yourself, the more challenging it is. Not to be in your comfort zone is great fun.