My advice, jump in with both feet!
Incorporate it into your daily regime. It may take some time to notice an improvement but smoother glowing skin can’t be bad. It might give you a smoother base for that Sephora make up. Go for it. Tell the beautician the gift card is for you and you want some advice. They will be thrilled. Some mascara to give those eyes a bit of a bang, some subtle lippy, some foundation/concealer for that smooth skin, they will colour match you.
Excited for you.