23 Year Old Female Looking for Trustworthy/Preventative Skincare Regimen?

I am overwhelmed by the hundreds of products & articles on how to take care of your skin in your 20's so I'm hoping this site will be the answer to my prayers. I recently purchased a 15% vitamin C, 1% vitamin E serum in attempts to take care of my skin. I also see recommendations for 30% glycolic acid pads and 5% vitamin A? What do YOU recommend? I already use plenty of sunscreen. Looking for an effective & affordable regimen. I am white, with sensitive acne-prone somewhat oily skin.

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