There are going to be lots of leadership post available in the next few years, as many primary heads and deputies retire. More than 40 per cent of deputies in primary schools were under 35 when appointed last year.
However, according to Department for Education and Skills figures, only a handful of deputies were under thirty. You might consider both widening your experience through taking a different year group, and enrolling on a programme of professional development, perhaps one leading to a higher degree. This will both widen your experience and increase your professional understanding. If you have spent your entire career in the same school, you might well want to move schools. This would be both a challenge and an opportunity to work in anther setting. Only about one in four schools appoints an internal candidate to a deputy headship and that is often when faced with no alternative.