I want to know how to get a white face like celebrities.

Is there any way to whiten my face? I don't have a naturally dark skin tone, but my face has become dull lately. It used to be slightly lighter than my neck, but now it's noticeably darker. Not only has my skin tone darkened, but my complexion has also become dull and lifeless, to the point where I hate looking in the mirror. I desperately need a way to whiten my face. I've tried whitening products and taken vitamin C daily, but since I haven't noticed any noticeable results, I think I need something more proactive, like a skin booster. Celebrities often start with dark, dull skin and then suddenly transform into clear, radiant skin. Do they have their own unique way to whiten their faces? I'm curious how to whiten their faces like theirs. What kind of skincare routine can help them achieve such a clear, radiant complexion?