It's best not to let people find out the fake age during the interview. Because cheating won't impress the interviewer. Everyone likes honest people. But after working for many years, no one will care about this, because you already have work experience, and age is only a very secondary issue.
Moreover, this kind of thing can be seen by looking at the powder application certificate. Remember this easy-to-expose lie and don't tell it after work. Everyone in the workplace will lie and have secrets. As long as they don't get caught (the kind with Zheng's evidence), everyone will basically turn a blind eye. If we catch this kind of person now, Zang will get everything, and the people around him will fall when they are in pain, which is unforgivable. So I'd rather hit Tai Ji Chuan than lie. It's really hard not to lie. I must also tell ten truths, including a lie. I would rather cheat than be caught cheating.
For example, in your case, you should apply for a fake powder application certificate and advance the date of birth to 24 years old, so that this will not be ruined. If you only say 24 verbally, what if someone asks you for your ID card? Absolutely a fool.
Besides, you are an honest boy, but you will see many dishonest things in the future. Don't have psychological burden, everyone is living in various ways, for a living.