Friend Brian, there is no better motivation than the family! It is normal that as a parent and responsible for them you feel that concern, but while they are there, you will draw strength to take care of all the responsibilities. It does not matter so much the quantity, but the quality of the time you dedicate to it. Everything will pass, and you will be fine. By the way, Linda picture your son's, it looks like Bob The Builder. God bless your family. Best regards.