Help❤️

So my skin has started to feel a bit tight and I want to find some suggestions because I don’t know if I’m doing anything wrong. 😅 I am 12 btw. My skincare is Cerave facial foaming cleanser for normal to oily skin, then I use my the ordinary niacinamide 10% + zinc 2% serum. After those I use my peach slices snail rescue all-in-one oil free moisturizer with snail mucin, and then for morning I will use as my last step e.l.f suntouchable invisible sunscreen. I don’t know what I’m doing wrong or what to do help please 🙏. Thank you so much 😘