Tik's Problem

I have a problem with gain weight I can’t stop to buy dessert when I walk pass dessert shop I love dessert I can eat some dessert all the time I don’t have to sleep when I never have dessert. I like to eat some dessert before go to bed. everyday I tried to stop buying some dessert when I saw dessert shop I don’t know why some dessert get into my life but I can’t stop.

what should I do?