like an ice cream cone

Starting a new job is an awful lot like trying to eat an ice cream cone on a warm Fall day. When you're first handed the cone, you're trying to pay, and get napkins, and keep it upright all at once. Then you're frantically licking to keep it from melting all over the place, or to keep it from rolling off.

You're so focused on controlling the cone that it's hard to just enjoy the ice cream. You can't help but think a cup would have been so much easier.
But you know that, eventually, you'll get the hang of it. You'll be able to take a breath without chocolate dripping all over your hands. Sooner or later.