Is it just not confirming? Due to the spam attack on the blockchain?
Yeah, it's just not confirming, ether because of the spam attack or the small fee (or both). So I though "I'll just double-spend it with a larger fee, that way it confirms and the older transaction becomes invalid"... but I can't find a way to double-spend it.
It is intentionally difficult to double-spend a transaction on the bitcoin network. Most any node that is currently aware of your old transaction will ignore any replacement transaction that you send, even if you pay a higher fee.
Therefore, you'll need to create a transaction, and then you'll need to find miners that have either already forgotten about your old transaction, or which are willing to accept replacement transactions with higher fees (most miners and mining pools will ignore the second transaction until their system has dropped the first transaction from their memory pool wich can take a few days). And finally you'll need to get your transaction to those miners that you found.
Good luck.
