There are debates on this about if getting out of your comfort zone is good or bad. I say, evaluate what you really need to do in life. If your comfort zone is not enough to provide it then you must find ways to get out of it. But you know what, the less you let you explore the world the less your life would be.
People say that your comfort zone will kill you. I don't know if you believe this or not. Just take the above image as an example. The fish was in its comfort zone and decided to jump. Maybe it will end up in a pond or in free water where it can explore life more. Or maybe it will end up failing to cope and live miserably. So before you decide to get out of your comfort zone, evaluate what you are going to do and what may happen. Prepare yourself with the upcoming situation and set your mind as per.
Accept that life is a continuous flux. There's nothing granted. You have to adapt, learn new things, break your barrier and move ahead to make yourself capable to enjoy life more. You have to give up your controlling mentality, you have to reshape your thought process, your perspective. Maybe you have to try new things to find out what makes you feel comfortable and happy.
Getting out of comfort zone will never be easy. Because of new challenges, new faces in life will not make you feel comfortable; maybe rest of your life. But believe me, you will surely feel happier than ever. If you really want it, don't lose hope. Set your mind string and enjoy your journey!