I looked at this in 2002 in the life laundry after my old man died. My current job pays pretty well (£2500 a month in my hand), I have £200k equity in my house and life is comfortable. I have done my job for 15 years, and am 15 years off pension (52). Hopefully I will attain at least another two ranks prior to retirement. I can't be sacked unless I do something criminal.
I have a mate who is a source of many wise words. His advice is to remember where you come in the food chain. Your sole purpose in life it to provide for your dependants. Despite the fact you only get one crack at this life, part of the pleasure is seeing others benefit from your toils.
I want to be an airline pilot. The reality is, I am not going to be one. The stakes are too high and the wife and kids aren't chips in a poker game.
I would always say to anyone thinking of risking everything, find someone older than you to mentor your ideas, and keep the reality checks coming thick and fast
STANDTO