Acne pigmentation that makes me upset every time I look in the mirrorㅜㅜ

These days, every morning after washing my face and looking in the mirror, I'm surprised by how different my skin looks. Before, even minor breakouts would quickly subside and disappear, but now, time feels so fleeting. The dark acne pigmentation on my face is especially frustrating. It's not the same as it used to be, and I'm constantly feeling discouraged when I go out. On bright, sunny days, the pigmentation is even more visible under the sunlight, making me hesitant to go outdoors. I diligently apply regenerative creams and vitamin-rich essences, but the healing process is so slow. Every time I look in the mirror and feel unfamiliar, I realize the passage of time and feel a bitter pang of sadness. I'm curious to know how you manage acne pigmentation, a deep concern like mine. Do you have any products you've used consistently and found effective, or any recommendations for skin care methods?