What year are you in and what do you want to do at uni? Are you looking for things to go on your personal statement? (although I think they are doing it differently next year so there will be structured questions rather than a ps). There's lots of things you can write about that aren't either paid for or wp courses. For example on mine I wrote about my EPQ, my A-level NEA, work experience and work shadowing I had done, free on line courses and youtube tutorials I'd completed, voluntary work I'd done, school clubs/activities I'd been involved with, things I did in my free time that were relevant. You could also write about any paid work you do, books that inspired you, relevant journals/magazine/websites you regularly read, aspects of your subject that really interest you and why.