Need advice on skin care

So this year I wanted to focus on self care and ordered few products for the same.

So I have derma co facewash, dot n key vitamin c serum, dot n key moisturizer with spf30, dot n key sunscreen 50+ spf and retonal my minimalist.

I apply facewash, serum, moisturizer, sunscreen in morning and night (I am mostly home so this is the routine) and apply retonal on Monday and Friday night.

Though I can see positive difference but my skin is getting dry. Am I doing something wrong?