Complex sentence: She attended Kinghorn Primary School where she was the Kinghorn Gala Queen in her final year and then attended Balwearie High School in Kirkcaldy, where she never abtained parts in any of the school musicals because she was too shy.
Split into simpler sentences: She attended Kinghorn Primary School where she was the Kinghorn Gala Queen in her final year. She then attended Balwearie High School in Kirkcaldy, though she did not take part in any of the school musicals because she was too shy.