Taking too much of an "intellectual" view on life is quite possibly the stupidest thing you could ever hope to do. (I generally use this in situations involving Nihilism and Misanthropy, neither of which I fully agree with, despite understanding the reasoning behind.)
Aside from that, I have several sub-philosophies. A simple set of guidelines, if you will.
1) Once you know your limits, alcohol is your best friend if an inexplicable change in factors is required.
2) If you overcome that surge of pain now, not only does it go away faster overall (not applying to lingering physical damage) but you get the satisfaction of having punched the person responsible out.
3) Everything is an Emily Dickinson quote if I say it is.
Among others, but three is always a good target in these threads.