Extremely urgent transaction sent with increased gas but stuck with thousands of confirmations

I've found myself in a spot of trouble that I've not experienced before.

I sent through a transaction as normal via Metamask and hit the 'Speed up' button to increase the gas because it's extremely urgent.

Despite hours of research, I apologise for my naivety so would deeply deeply appreciate it if anyone was kind enough to take a quick look and explain why it will not go through as is just racking up endless confirmations, now in the many thousands?

0xe3e1af3d527fa5c0e99de937ae78c73a82027aaa371b7a35105b247f11b469c7

If there is anything I can do to rectify this situation or if anyone could work out how much longer this is expected to take, both of those would be very much appreciated as well.

This means a great deal to me so I can not thank you enough in advance if you can shed any wisdom on this.

Warmest regards

EDIT: the reason why I don't think it has gone through is if I search for it on the receiving wallet, it doesn't appear to show up:

https://ethplorer.io/address/0x791f5ef220de3324ff16e9ed56ab13a0be2ac157#pageSize=100