My dad bothers me too much?!?

My dad keeps bothering me while im either with my bunny, on the computer, with friends or whatever!! HE WILL NOT LEAVE ME ALONE!! ITS SO ANNOYING!!! whenever i yell at him to go away, he starts smiling. and that pisses me off! whatever i do, he will not get out of my face and leave me to my privacy!! he keeps bothering me to do this and do that and say lies just to make me downstairs or somewhere where he is!! I HATE THAT!!! im pissed and sorry im low self esteem.