To all those that have stuck transactions, try a child pays for parent if you're doing this using Electrum for instance. Don't go paying crazy amounts for paid accelerators if you don't need to!
Details here:
https://data-dive.com/unconfirmed-bitcoin-transactions-electrumBasically, what you do, or what I did, is you pay yourself your entire BTC balance in Electrum with a high enough fee for it to pass quickly. This will include previous outputs that have not been confirmed yet (hence the child (new tx) pays for the parent (the stuck one)).
I did this 10 minutes ago and my stuck tx is now being confirmed.