"Holding anger is a poison. It eats you from inside. We think that hating is a weapon that attacks the person who harmed us. But hatred is a curved blade. And the harms we do, we do to ourselves."-Mitch Albom
Sign up to a site like Bitgo, and you can transfer your BitCoin Core wallet amount to the secure wallet on Bitgo. Then you'll be able to use your secure address to purchase things on sites that support Bitcoins. Or you can exchange your bitcoins for real money.