What has pushed you to go from a comfortable job to a more stressful underpaid job? If you don't mind me asking...
Bored, no job satisfaction, unchallenged...shall I go on?
I don't know where everyones view of it being underpaid comes from though....OK starting wage is around 19,500 but this increases to around & 22,500 once you finish training. After 7 years you're up to around £37k. This is before you take in consideration 10-15% extra shift allowance.
One of the best pension schemes around and a job whilst very stressful at times can also be one of the most rewarding... Making a difference, however small to the local area.