Complex sentence: She started working as a saturday girl in the menswear department of her local Debenhams at the age of 16 before managing a gift shop and went on to study Economics and Business at Aberystwyth University.
Split into simpler sentences: She started working as a saturday girl in the menswear department of her local Debenhams at the age of 16 before managing a gift shop. She went on to study Economics and Business at Aberystwyth University.