Everyone's body chemistry is different, and sometimes we react differently to products that others have had great success with. For example, I love the Covergirl Professional Lash mascara, but you seem to be having difficulties with it. That doesn't mean that it's a bad product, it just means that you might be more sensitive to the ingredients in the mascara. Try using a mascara that claims to be useful to sensitive eyes, or safe for contact lens wearers. I always find that these tips help me to pick out a product that is more likely to work for me. Hope you find something you like!