How to get rid of laugh lines for a teen?

I'm 18 and over the past few months I've been noticing fine lines developing around my mouth in the crease between my cheeks and lip area. It is rather noticeable and, although I acknowledge it's a very shallow concern, it's been really making me not want to smile or laugh because I don't want to deepen the lines. I'm of African descent and neither of my parents are very "wrinkly" or have experienced these signs of aging skin this early. I've been using some of my mother's anti wrinkle serums, but as of yet they haven't really seemed to work. I'm really afraid I'll never be able to get rid of these lines and I'll look 10 years older than I actually am for the rest of my life. HELP!