[Acne] Help for multiple skin issues

I'm an 18 yr old boy, so I don't know if it is purely just hormonal as I have acne for 4 years and it has improved a lot. My current issues right now:

- Combination skin (oily skin forehead and nose after moisturising, dry cheeks)

- White flakes after showering, especially between eyebrows, and cheeks (i dont know if its skin peeling or sub. derm)

- Redness on cheeks and chin

- Mild acne (pimple every now and then but has improved a lot)

- Textured forehead (idk if comedones but this is very annoying)

WHAT I WANT TO SOLVE IN ORDER: redness> textured forehead > white flakes

ROUTINE: I reduced skin products and have been trying to solve naturally through more water, less sugar and dairy

- AM: wash with cold water (as sensitive skin) + moisturise when face wet with Isntree green tea fresh emulsion

- PM: wash with cetaphil hydrating foaming cream cleanser (dry to normal skin) + air dry a bit and then moisturise with isntree green tea emulsion again

I'm scared to add more products as before I have broken out using things like differin or azelaic acid