How to get rid of wrinkles?

im 15, and i have like fine wrinles on my forehead, idk why. but they are they. they werent there last year, but i have got into the habit of raising my eyebrows alot, i cant help it, idk why. its weird. but how can i get of them?? i dont want to be old before my time, and i dont want to have to out on coverup every where i go the rest of my life to cover them up. helppp??!!