We all have things that we are comfortable doing, and other things that are outside our comfort zone. The only way to bring something that is outside your comfort zone in to your comfort zone is to expand your zone. In a sense, you don’t really bring a task in to your comfort zone. Instead, you expand your comfort zone to include this item.
You do this by taking action. You cannot expand your comfort zone unless you are willing to act. In most cases, it will require you to repeat your actions many times before your zone expands. Every time you take on something new and expand your comfort zone it builds your confidence and creates new capabilities that you can use to succeed.