duffy attended ysgol nefyn (nefyn school), gwynedd on the llyn peninsula and sir thomas picton school in haverfordwest, pembrokeshire as a child. at the age of 17, she attended the pwllheli campus of coleg meirion-dwyfor to study for a-levels. she subsequently went to the university of chester and studied commercial music production on the warrington campus. from 2004, she studied performing arts at the parkgate campus.