Firstly I must ask: after the degree finishes is there a job youd like to do that would need the degree as if there is then this would be a reason for staying on the course. As for leaving, youd only be liable for 25% of the tuition loan until the first day of the second term where it is 50% and 100% from the first day of the third term. what you should ask yourself is if you were to change to a different course like the one you mentioned, would the degree give you what you needed to get a job you would also enjoy and be able to live on as, at the end of the day, uni is a means to an end. Depending on whether you are financially reliant on your parents is another think you need to think about; you said a loan which i assume from the government but what about accommodation and livign costs? you arent too far in to the course to change in my opinion; I left almost immediately and am going to a different uni for a different course soon. All this being said you must do what you feel is right for yourself as if you arent enjoying life then whats the point?