You don't say what job you're currently doing and whether you're using any transferrable skills. The big problem about the CAB is that you need to have the free time to do their courses in the first place. But your local authority may have a Welfare Rights section, and if so, the work in this job is similar although without the range (mainly benefits problems etc); you may fancy doing some training with them? Also try your local university' students' union's right and advice section.