does anyone know how to get clearer skin?

I used to not have acne but when I hit puberty I do now. I use Korean skincare, retinal, serums, acids, and acne serum and imo it’s gotten better but it’s still pretty bad. Like I don’t know what’s going on I feel like ever since I hit puberty everything’s changed. And I’m 14m. Does anyone have any tips? And how do I find out my skin type?