Helena Bonham Carter finds parenthood tough

London: `Harry Potter` star Helena Bonham Carter feels she is not doing parenting as well as she could.

The 48-year-old `Alice in Wonderland` star, who has two children with partner Tim Burton, said she finds it difficult juggling her career with taking care of her children, reportedly. "Juggling motherhood with acting is hard and I am always dropping balls all the time. You always feel you are doing everything badly," she said, adding Burton is a great father. Carter says she is in high position with her career, but busy schedules leave her exhausted. She said she had a perfect childhood and hopes to be as good a parent as her own.