Robert is an unusual teenager. He never sleeps in, he always wakes up early and fulfills his duties on time, but there is something that he often does, he likes to play dumb pranks/tricks. That kind of stuff annoys his sisters which is one of his favorite hobbies in the world. He's close to the sports coach of the neighborhood , that's why he can train in the local gym as long as he helps the coach to set up the gym stuff at the end of the day trip. Not a bad piece of writing. Hope the corrections help you. What about booking me for 30 minutes soon? You could use some English help I think

Robert is an unusual teenager. He never sleeps in, he always wakes up early and fulfills his duties on time. But there is something that he often does: he likes to make dumb gimmicks??. That kind of stuff bothers his sisters, but it is one of his favorite hobbies in the world. He's tight with the neighborhood sports coach, who lets him train in the local gym in exchange for straightening up the gym equipment at the end od the day trip.