My laptop won`t load after i dropped a jar on it! help!?

So when the jar fell on the middle of the keyboard it completely shut off! i tried to turn it back on & it started to load showing the Dell emblem then it went to the screen where it says "start windows normally" & "launch startup repair". then which ever i choose, it attempts to load showing microsoft at bottom of screen for a few minutes then goes to blank grayish blue screen. i tried f12 for boot options & chose diagnostics. it went to pre-boot system assessment. i got error code 0142 & 0146 for hard drive & test failed. at one point when trying to load up i got a blue screen & at top it said "Stop: c000021a fatal system error....this scares me! i need help trying to figure this out because i can`t afford to get it repaired or get a new one! i also have tons of pictures & other things i really cannot lose! if anyone with good knowledge of computers can help it would be so greatly appreciated! thanks so much in advance!