Now that we know you have kids and dogs and a neighborhood you like, it is pretty easy to advise you to stay put. Attack those expenses, question every outlay, and buy a Dave Ramsey book to learn how to budget and save. No need to disrupt your family and suffer the transaction costs, financial and otherwise, of a move.
And start to look at your finances through a balance sheet approach, not just income or cash flow. Compare your personal balance sheet now compared to three years ago. Depending on the car debt and credit card balances you have (presumably) built up, you are likely in good shape thanks to buying before the runup in prices. So again, go back and analyze those expenses.
In a few years, your house debt will be less (adding to your net worth), and your house will likely be worth more. Plug in a conservative assumption of house appreciation between now and then to determine your likely net worth then. That should convince you to tough it out.
