1 What you wanted to do or be after university and why?
I did a year of a computing degree before switching to English so any career goals I had changed quite quickly. In this sense, the only thing I was sure of mid-way through my English degree was that I wanted to study more. After completing a masters degree, I am sure that I want to do doctoral research. Studying has changed my approach to 'having goals' in the first place. I am more pragmatic about what pleases me, and what I want to get out of life.
2 What you do now and why you do it?
I work in a prison education department. It is an interesting job, I have a lot of responsibility, and the conditions are good.
When I switched to English, I knew that teaching was one of the standard careers for graduates so I got a lot of experience in secondary schools and further-education colleges. I realised I did not like it but the experience was useful. When I did my masters I instinctively looked for more experience of the same, and I got paid work invigilating undergraduate exams, and helped out on a part-time undergraduate degree. This experience working with adults got me the job above.
When my contract ends, the experience in prison will give me a very good reference and make me stand out.
3 What advice you have for freshers, that may awaken them (if they hitherto have not been) to the realities of life after university? Any myths to dispel?
Craghyrax hit the nail on the head with regards to money. You should not really be leaving university with a full overdraft (I did). You should try as far as possible to actually save some of the money you receive, because it will give you options once you have graduated, whether it is for travelling, to subsidise unpaid work experience, or to lower the amount you need to borrow for further studying and training etc., etc..
Most of the other users have covered most of the points I would have mentioned. One point has not been mentioned. I would cultivate a decent relationship with as many of the lecturers as humanely possible. Given the employment situation at the moment, a lot of students will not have part-time jobs whilst at university, which means one of the only referees they can fall back on is a lecturer. If you have been anonymous for three years then do not expect a good reference. But a good relationship with a lecturer lasts. I had lecturers writing references and giving research advice years after I left; one of which was no longer at the same university.