The most freedom is in IT, because you can go remote, there is no licensing (change markets at will), and starting your own venture is always an option with relatively low barriers to entry. Also, the norm is that you get paid, unlike - say - pure art type creatives. Try thinking outside of the traditional wageslave context and see if you can save on living expenses, tax or get extra holidays by configuring your life around longer term remote projects, etc. instead of doing the mortgage in a major city thing. It's worked out well for me, YMMV.