In March the University of Sheffield Dept of Lifelong Learning will run the Discover short programme, designed to inspire you to progress with learning. Sounds like you are the sort of person it is aimed at.
https://www.sheffield.ac.uk/till/discover
From the website
"Are you interested in studying towards a degree?
Would you like to visit local museums and galleries?
Would you like to build your confidence and learn new skills?
Would you like to find out about courses at the University of Sheffield?"
I am currently studying with the Department of Lifelong Learning. They have recently undergone a major restructuring so I'm not sure that the web pages will give you all the info you need, certainly all of the information on open days is out of date - probably best to contact them directly.
Best of luck.
---------- Post added 29-12-2014 at 11:20 ----------
Department for Lifelong Learning link
http://www.sheffield.ac.uk/till/