Miley Cyrus

PSP,memory stick problem!!!?

guyz,i’ll give absolute 10 points who solves my problems…
urm four months ago,i bought a new psp 3004 with a 16GB memory stick pro duo…it works completely until yesterday..here’s the story..
a week ago,i change memory stick with my friends,and yesterday,my memory stick just slows down and the screen of my PSP flicks like the frames per second is slowing down than normal,then,i just switch off the psp,an hour later i try to access my memory stick but the psp system doesn’t detect the memory stick,i try to reboot my psp but it still didn’t detect the memory stick…i tried blowing the memory slot and the memory itself but still doesn’t work…and i even tried to format the memory stick by using my pc..but still doesn’t work..any solutions?other than buying another memory…and one more,if i take out my memory stick from my psp to another for a few times,will it damage my memory stick…?thanks..
when i put in the memory stick,the psp tries to load ,but cannot,just now i tried to left it for a while but it still trying to load and doesn’t seem to load the data..and when i try to format it,it said ‘no memory stick inserted’..and when i format it via my pc(still detectable at my pc,weird),it says ‘windows cannot complete the formatting process’…