My first game

I've made a game! Well, it's a game in the sense that it changes based on user input. And it's really short, but it's still 'a game'. I call the game 'The Cake is Inevitable'.

My creme de la creme, 'The Cake is Inevitable'.

Here's a link to it as a download: http://www.filehosting.org/file/details/214517/The_Cake_is_Inevitable.exe

I would have liked to have known how to make the program go back to a previous line of code, because in one section I wanted the program to repeat itself until a certain statement is true. At the moment all I know about looping is 'if / then' statements. I'm sure other loop statements hold the answer.