Since you say you are a newbie to skincare, try adding some niacinamide based cream/serum to your skincare routine for enhanced brightness and clarity. However make sure you use a good dermatologist recommended brand rather than some OTC product or falling for some instagram product.
Once you start using any actives, SPF is a must. Start using any spf 50 product to protect the skin further.
Next Steps
This is just preliminary advice, but you should visit a dermatologist for proper skin evaluation and get a routine that works for you.
Health Tips
Do not follow advice from google/instagram.