Hardware Psp custom firmware big problem

[Pheonix16]

Hi I am new here, I have a PSP 1000 and after I installed 6.61 firmware from sony I downloaded custom firmware for my psp that allowed me to use games I downloaded from online rather than discs. It was working fine for a week, than one day, I took it off charger, dropped it half a foot than picked it up. It was completely off at the time. I boot it up, go into fast recovery, when it's done the psp just shows the backscreen shaking very badly, lines with color but no icons for anything , if I wait really long icons will show up and i can move thru them extremely slow and shaky also the sound is lagging, when i go to my data card I click on the memory and it dosent load no matter how long I wait. If I comepletely tuen off system than on again it works fine up until I try to use my custom firmware. I can't play games at all , I have tried reinstalling custom firmware to no avail. I also can't go into recovery mode now even when I don't FR the custom firmware. Please help, I used all my money to buy this PSP which I can't return, and the memory stick, and micro SD. Please help I don't know what to do