So if you were male, you'd become female, and vice versa. It would be as though you were born female. According to everyone's memory and all official documents, you were born female. The only person who remembers otherwise is you. You would have to go through everything the average female goes through, such as periods and possible pregnancy. You would also have to deal with female hormones. Furthermore, you would look just like your dream girl, whether she be real or animated. Would you do it?