Psl 11:3- If the foundation be destroyed, what can the righteous do?
Victoria Nehale from Namibia got a job with a fraudulent certificate that she had bought&Jesus appeared to her&told her she's a thief, that prompted her to restitute by writing her employers that she's been using a bought certificate.
She was forgiven&she found favor with her employers because such offence may land her behind the bars. You don't need to fear what telling the truth may earn you, just do it. If you're using a forged certificate or you didn't write your exams by yourself, you're not the owner of that certificate- restitute.
If also you have lied about your age so that some benefits can accrue to you, it is better you go correct such documents, say the truth and make heaven rather than live on lies and go to hell.
When you keep claiming an age or certificate you didn't earn legally, it may land you in hell, GO MAKE CORRECTIONS.