Lets be clear, if you have the money to do your training at this age, you have most likely been pretty successful in your "other" career in some way, and you are accustomed to a certain lifestyle.
this is bang on! And I guess it's not just the lifestyle (although I'm not posh at all), the main problem for me is going to be the attitude! I don't remember when was the last time I was told how to do my job etc, so it will require a lot from me to reset myself to a blank page and essentially do it all over again, be a junior again, with blank stare and sweaty pits.. I can do it, I just know I can