Is it okay to use anti wrinkle cream when ur young?

Im 15 as well :) There is nothing wrong with mixing different creams (Unless the particular cream is irritating your skin) moisturising your skin can do only good! My mum always says that prevention is better than cure so it is good to use moisturising anti-wrinkle creams (but not strong ones) when you don't have any. I wouldn't worry about wrinkles now, your only young! I myself don't apply anti-wrinkle cream because 15 is a bit young to start worrying. Continuing to practice a good skin routine like you have will keep your skin in good condition for longer.