-Sounds like your makeup probabley looks alright but do you put that much on everyday? I'm ten years older than you and was lucky to have had pretty skin most of my life; still have it! I guess it probabley won't hurt you as long as you use decent products and are not sleeping in it regularly (I hope you wear moisturizer with an SPF every day/night lotion too). -I think covergirl and maybelline and the like are fine for teens as long as you keep your products clean and do not share masquera (liner is fine as long as you resharpen between). -a lot of younger girls make the mistake of overdoing the liquid foundation when the truth is: very few even need it. -I hardly use it now even. Try saving your liquid foundation for eye circles or blending rosey spots to make more even but do not use all over your face or you will look "cakey" and be prone to breakouts (yikes)! -and paler is better than too tan (you can always use bronzer) . -this will save your skin in years to come and save you time too. -if your foundation comes off on your clothes when your change them; you are probabley wearing too much. -Also experiment with different looks and techniques; a lot of people get stuck at an early age with one makeup routine and over time it becomes out-dated and your friends will wonder why you look exactly the same all the time; find looks for nights out as well as light looks for summer days so you can feel pretty without being bogged down to the same routine or look. -have fun with your makeup
-J.