well at times you think we really like something but then we realized its not what we wanted. so try out different kinds of jobs to get a feel for what you think is good for you. don;t focus only on jobs that are "cool" or popular such working at Forever21. do things that are unique to you as well. and also try to get jobs in fields that you do not think you would like you might be surprised about what you find.
You will know which job you are interested in when you are excited or curiosity is aroused when you think of it. Interest in a job is important because it is the power that makes you wake up and go to work happy knowing that you are doing what you have concern in and hence doing it to your level best.