Well the current situation is now 55,179 unconfirmed transactions so, i guess your transaction has so high fee that it should be confirmed within 12 hour window.
I find it pretty weird that, since you have such a big fee that it did not get confirmed. At times like this, you should check the current fee rate from
chain.so and for example now it is around 0.0002BTC, i would recommend using 0.0003 for such transactions that need to be confirmed quickly.
If it has not confirmed within 72 hours, it will get rejected by the network and returned back to your wallet.