A writer should not begin every sentence with the same noun.
Sometimes the words he, she, I, we, it, and they are used in place of nouns. These are called pronouns.
Anson is riding a red bike to the park.
He is riding a red bike to the park.
Leah is practicing her dribbling skills.
She is practicing her dribbling skills.
The butterfly is on the purple flowers.
It is on the purple flowers.
The children are in a potato sack race.
They are in a potato sack race.
My family and I like to eat vegetables.
We like to eat vegetables.