Do you feel as though your skills in your career area need to be updated so you are competitive in todays market? Before you make a decision to go back to school, consider your other options. Are you engaging in some professional reading to discover the latest trends? Entrepreneurship, Fast Company, the Harvard Business Review and INC. magazines are ready sources of information about what is happening in the best companies today. You might pick up some current expressions. Do you know about crowdfunding, on boarding, etc?
For more in depth learning and at low cost, consider Lynda.com. Here you will find 3,5000 web-based tutorials.. Coursera,Udemy and EdX offer hundreds of online classes most of which are free or low cost.
With a certain amount of discipline, you can train yourself without external pressure! Soon you will be welcoming your enhanced skill set and move on to get that next best job!