Step 1: Pay your bills, look at your retirement account, your mortgage, etc. Step 2: Figure out why you're working in the first place - if it's to put food on the table and pay your bills, then there's your motivation.
If you decide that you're working in order to fill a hole in your should and get a sense of satisfaction and contentment, find it outside of work (family, church, volunteering, etc).
If you decide that you're working in order to fill a hole in your should and get a sense of satisfaction and contentment, find it outside of work (family, church, volunteering, etc).