<human>: I am in my second year at university and exams are over the next three weeks however I do not feel at all prepared and think I am going to do quite badly. This is for a number of reasons, my own under preparation and several mental health issues. I am going to speak with my university tomorrow to discuss this in more detail. 

However, in the past I dropped out of school and had to redo a year. My parents sent me to an expensive private school to finish and I did fairly well. I then went to university (a different one from the one I am at now) and did a course I ended up hating so dropped out after 1 semester. This was quite an emotional time and I spent the rest of the year working and reapplied to another university. I haven't found my time here easy but I do like the course. 

I don't know how to tell my parents I want to retake another year. I think they'll either be really disappointed or really angry at me. Any advice?

Give me the gist of the text in a nutshell
<bot>: Already dropped out of school/uni twice, want to retake a year on a course I like but don't know how to tell my parents.