hi,
I think I understand your problem. But you are lucky that you look younger than your age. People who cannot see your actual age from your I.D., are illiterate so the blame should be focused on them, not on you. There is nothing wrong with your age. You look younger or older, it should not matter to the employer , you are going to have. I hope you will get a wiser employer next time. Pl be patient and hope for the best.
hope it will help you,
thx