Going deeper (for ages 14-18)
The original Y Combinator template said "We help." Most of you are working alone, with at most one parent's involvement.
For a fourteen-year-old solo builder, "I help" is more honest. It puts a real person behind the sentence. The customer reads it and knows there's one human responsible.
For Coach Lin, either form is fine. The blanks matter. The pronoun is a footnote.
The one-sentence offer has a corporate sibling called the Value Proposition Canvas (Alex Osterwalder, 2014). It blows the sentence up into a full diagram: customer jobs, pains, gains, pain relievers, gain creators. Useful at scale. Overkill at your stage.
Underneath both sits positioning theory (Trout & Ries, 1981). Their argument: the customer's mind already has a category for what you sell, and your job is to own one specific phrase in that category. The one-sentence offer is positioning theory in a sticky note.
If you're 16+ and curious, search "Strategyzer Value Proposition Canvas." Free PDF, short. For Wright you don't need it. Ship first. Diagrams later (if ever).