Hi. Talk to your parents of what it makes you feel and know the reason why they do that. It's such a pity that some parents treat their children differently from each other. But it can't be helped,it happens. What you can do is stop competing for their attention and just do the best that you can do as their child. Anyhow, being your parents,I'm pretty sure they love you the best way they know how although it's difficult to see and feel at times because of the way they deal with you.Make them proud.