I got rear ended today!

so... after spending $2k on upgrading parts on my car over the past 2 months... i get rear ended today on my way to lunch. i was livid. i could not believe it. i was sitting there and i was like wow my car is exactly how i want it to be. then bam NOT ANY MORE!!! the dude was driving a 95 cutlass and slammed into the back of my car pretty hard.i thought my rear end would be demolished but it actually wasnt that bad but still... i was PISSED and i couldnt really hold back and kind of took it out o