It depends what you are applying to do. I finished college last July and had a job by September when my CRB came through as a support worker for adults with mental disability. The job is pretty easy once you get used to the challenging behaviour. You help wash, dress, cook and take the service users designated to you out on excursions to cinema, parks, bowling alley. My point is just don't look at retail. It's not as funny and probs more tiring.
Edit: I realise this post might not apply to you WiseLad since you are not 18 yet. From my brother's experience, i know trying to get a job at 16 is pretty tough but keep trying. Maybe try your family contacts...