One of Aries' biggest fears is being bored. They're likely to be the ones triple or quadruple multi-tasking, jiggling their leg the entire time. You can't help it that you have a ton of energy, right?
You like to feel like you've accomplished a lot at the end of the day - that's terrific! We should all be so ambitious.
Unfortunately, almost any job will have boring down times. Routine office work isn't really for your sign. You need fresh challenges each day, which offer the feeling of having bested them on the other side. It's a huge rush for you.
But no matter what you do to earn a living, not every day is going to feel like climbing Mt. Everest. Making peace with the mundane is one way Aries learns how the rest of us live. Try to enjoy those moments of boredom as moments of "me time."