Is feminization a bad thing?

Is being feminized bad: 20% boy, 80% girly according to a survey. I'm a guy using my sisters account and yes I wear a leotard to gymnastics and do balance beam. and I'm straight. She is a year younger at 15 and gets to punish me when my parents are gone. Its not fair. Shes stronger and has even ed me and dressed me in a miniskirt. She had me join her ballet cl and wear a pink thong Leo with pink makeup and other girls called me a sissy and one even ed me after practice (playfully). All of this because of my sister and her friends. Have I been feminized?