Well lets see...apps freeze randomly, force quit does nothing, Finder hangs nearly everytime I open it, force relaunch doesnt work. Same issues every single time I use my machine. I can reboot and get things normal, but these issues will just pop up immediately. I'm restarting nearly every 30 minutes because the entire system just hangs. I can't take it anymore.
1) this is why you should always buy the apple care plan.
2) how old is your machine?
3) if less than a year, bring it in to an apple store and they'll fix it
4) if you have apple care, call in about it or still take it in, they'll work to fix it. there's more to do than just complain and wait for software updates . . .