Don't do what you can do - try what you can't do.
Being comfortable isn't the way to learn to expand your abilities.
Start wide, expand further, and never look back.
I always think you should push your envelope every chance you get.
Don't settle for comfortable misery, a sad state where you're hanging on to what is most predictable and familiar at the risk of letting exciting opportunities pass you by.
Let's cut loose what you were given and find what you can seek.