I really feel as though I'm just plodding along at the minute, I've been in my current office job for 4 years and I'm totally sick!!

I need a change of direction but haven't got a clue where to start, wouldn't mind doing some sort of highway maintenance or something like that, but tbh I just want a change!

With qualifications to just A-Level, whats the chance of doing something like the above or would I need a specific degree?