Is it normal to always want to be alone like this?

almost word for word how I feel, It isn't that I reject people, I just enjoy solitude and prefer to live inside my own head, finding peace in writing out stories and generally being a quite little introvert, with family I can be very open and can get very conversational in the right situation ( long car rides for instance ) people say I am antisocial but while not untrue it is far too blunt, overall I just like to be left alone