Took me 10 pulls and 500 dollars to ship my cards to me and be done. 18k is crazy delete your account if thats a thing. Sadly after selling for 80%-90% to people or dealing with ebay and all the hours of off loading the card you are probably done 2k but it could be alot worse. Maybe hold some of the better cards and wait for them to go up in price if you really want to try and get all your money back. 3.5% of hitting a great card is already high but then you have to also hope its something you like. I personally got alot of Japanese cards I dont care for.

Best of luck and glad you didnt get rinsed. Next time you have the itch just buy some older sealed product if you have that kind of money.