[Question] How can I manage the freckles and dark spots that I have had since I was a teenager?

I've noticed freckles and dark spots since I was a teenager. Prolonged sun exposure or exposure to strong UV rays in the summer definitely makes them darker, and I've also noticed that they worsen under sleep deprivation or stress. Conversely, getting enough sleep, maintaining a regular routine, and consistently applying sunscreen seem to alleviate them to some degree. So far, I've tried a few things: applying sunscreen every morning and reapplying when going out, taking vitamin C supplements and eating fruit, getting laser toning and whitening treatments at a dermatologist, improving my diet, staying hydrated, and using moisturizers. However, these aren't perfect solutions, so I feel consistent management is the most helpful. If anyone has experienced similar issues, please share your management methods and any tips you've found effective.