There are so many reasons I should be celebrating. Making that last preschool payment should make me want to jump for joy! It means we have extra money each month to spend elsewhere. It means we have officially graduated from pull-ups and sippy cups. It means all my kiddos are old enough to make their own snacks, put on their own shoes and buckle themselves up in the car. Those are all good things that definitely bring a smile to my face. But, then my heart feels heavy and my eyes fill with tears. Because this also reminds me…