if you were fortunate to be hit with the 1 out of 1500 ransomware variants that have been taken down and/or decryption instructions given, you might be successful. (WIthout Mr. Britec knowing the exact sample/variant you have been stricken by, it would be premature to tell you 'all will go perfectly' on getting your files decrypted)
Follow the instructions from the links previously given. (If so fortunate to get your data back, you dodged a serious proverbial bullet. If you have important/valuable files, you'll want periodic offline (i.e., not attached to computer, preventing their infection) backups as well. It's a painful lesson hopefully dodged.