You can either wait for it to become confirmed, wait for it to drop from the network and then resend with a higher fee, or to attempt a double spend with a higher fee.
If you wait for it to drop, then after a few days, it should disappear from the network and then you can resend the transaction but include a higher fee.
If you want it faster now, then you can try resending it now but with a higher fee.
I have no problem resending with a higher fee but,
How do I resend with a higher fee?
My balance is 0.00 in the wallet and I tried to send anyways and it says"no free outputs to send"
Is there a way to cancel the transaction since its not confirmed??