I know it's cliche (and kinda dime store
) but if your mind is happy, and you're content with life, then life will reflect that. The more enjoyment you can squeeze out of life, the more enjoyment there will be to squeeze out. Also I find the proper frame of mind can actually help speed up the healing process (if you're suffering from something that can heal, which despite the experts, I consider to be everything)
If you're sitting there like a lump on a log day in and day out, wallowing in self pity and 'what if's and 'I'd likes's then life will keep giving you more crap to not like.
Granted I really have no idea what your mindset is like, but it sounds like you've been 'in a rut' as it were, lacking the enjoyment of life, yet it sounds like Airsoft is the rising sun of your day, so kick ass!
"the darker the shadow, the brighter the light that cast it" (I find thinking on that helps when I start getting depressed and shit.)
Anywho... *thumbs up*