What can I do to look my age? Everyone thinks I'm 10 years older! (photo)

I'm 24, people tend to think I am 5 years older, sometimes 10 years older than my age. I use Retinyl Palmitate in my lotion, SPF 50 with zinc every day..no smoking, no binge drinking, I'm at a healthy weight toward lower end of BMI. Why do I look so old? What can I do to look younger? What is the most natural/least invasive thing I can do? I really dont want to get fillers/surgery so young. Will lifestyle changes help? Pic taken with some makeup, no filter, natural light.

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