wallet – BTC send transaction “stuck”

It seems I have a stuck “send” transaction. I transferred the entirety of my BitCoin Core wallet to Newton. (purely so I could offload the blockchain off my PC)

I am sure the fee was too low after the reading I’ve done. I have the transaction details, yet can’t seem to even look it up. I’ve waited a few days now, before panicking, but I’m starting to approach that stage.

I also can’t offer a higher fee as it was the total amount left in that wallet. Does anyone have any ideas how I can force terminate or cancel this transaction? Or is my only solution to wait it out and hope?

I appreciate any suggestions or tips.

Thank you everyone.