You won't know if you are capable until you give it a go I think you should look into different universities (they all have websites now) and which courses sound good to you and then contact the admissions centre at the uni and find out how you go about applying.

The first time I went to uni - straight out of school - I studied for the sake of it. I did a Bachelor of Arts, which was never really going to get me anywhere, although I did enjoy it. I was pregnant by the time I graduated, so went straight into marriage and babies. Now this year I have started a Bachelor of Nursing, which I chose for 2 reasons: 1. It interests me and 2. I am virtually guaranteed a job when I graduate (and even before, as an EN or AIN). Anyway, if you want to study, don't do it for the sake of doing something. And don't choose a course (like law) just because it seems more 'do-able' than other options. If you are not really that passionate or interested in law or becoming a lawyer, it will not be worth your while to spend 3 or 4 years of your life and a lot of money in fees and textbooks on a career path you really are not that into.