hi .. i'm in the same situation as you (career crisis)
i joined an assessment day, i didn't make it .. and after all the touble, the travel costs .. at the middle of the assessment i was wondering what i was doing there?! the assessement was kinda crowded, started late, something i was not used to .. it made me also think why i was leaving my current job
.. and the reason why i wanted to become a cc .. and the main reason why i wanted to become a cc - because of the travel opportunity .. i guess my reason wasn't enough, that didn't give me the determination to last the day, it was hard for me to smile
.. and thought, i can still travel, not just everyday but maybe trice a year.. so my advice .. before making a career change, make sure it is what you wanted .. if your young, then you'll have plenty of opportunity .. try it for 3 years maybe, but if you are in your late 20s you have to think a couple of times .. it's a big risk ..my final advice .. follow what your heart desires ..
good luck to all