Can you recommend a product that can help with my prob?

Chicken pox scarring is difficult to remove. But for those dark spots. You can try the alpha arbutin and azelaic combo. It's good at reducing dark spots. What kind of scarring do you have? The lanbena TCM cream is surprising good for some reason it's quite effective when it comes to flattening and lightening scars. I still have a bit of trust issues with it thoigh since it's too affordable 😅

For the chicken pox scar I think it will be difficult without some kind of treatment because skincare is not enough for those kind of scar. For your routine I guess you might work more on hydrating aspects as the cleansers you use can be very drying on the skin. You can add hydrating toner to be used after cleansing. Since you use sunscreen you need to double cleanse at night too, try to use micellar water or cleansing oil to wash off the residue.