The person appears to be a/an White Male, approximately 10 to 19 years old.
Young writers frequently encounter these common mistakes:

1. Forgetting to proofread their work, leading to errors.
2. Lacking a clear structure, which can confuse readers.
3. Not including enough examples to support their ideas.
4. Failing to provide necessary background information on their topics.
5. Skipping transitions, making their writing feel choppy.
6. Using passive voice too often instead of active voice.
7. Writing in a boring way instead of using lively and precise language.
8. Overusing descriptive words like adverbs and adjectives instead of strong nouns and verbs.
9. Ignoring the visual appeal of their text, such as font and spacing choices.
10. Not revising their work to improve clarity and conciseness.
Young writers often encounter several common pitfalls that can hinder their development:

1. Failing to proofread their work, leading to overlooked errors.
2. Lacking a clear structure, which can confuse readers.
3. Not providing sufficient examples or evidence to support their arguments.
4. Neglecting to give adequate background information on their topics.
5. Overlooking the importance of transitions between ideas.
6. Using passive voice too frequently instead of active voice.
7. Writing in a monotonous and wordy manner, rather than opting for strong and concise language.
8. Relying too heavily on adverbs and adjectives instead of powerful nouns and verbs.
9. Ignoring the visual presentation of their text, such as font choice and spacing.
10. Failing to revise their work for clarity and conciseness, which can lead to unnecessary complexity.