Emptiness is a spoiler... Don't sit idle
Organize your house, read a book, improve your skills, communicate with your relatives, make a pledge with a friend, review your goals, arrange your priorities... Memorize a verse or a hadith or a text or a poem, exercise, think about the blessings of Allah, stick to remembering Allah, sit with yourself to improve your behavior, take a walk and relax... Make your day valuable.