You make a time table for the holidays & then try to achieve it. First of all try to make you regular in your prayers & read Quran with translation daily.
Then give some time to your study.
Then work in the kitchen with your mom & learn new dishes.
Try to clean your cupboard, room, books & everything needs cleanliness.
This the time that you learn how to keep your things & look after them.
Learn some gardening.
Try to learn stitching as well. Everything about household you learn now will be useful for all life.