by trying to do a double spend transaction. search on that topic in this subforum to get more info
and knowing what wallet you used in the first place will give an idea on how to do it
btw may I know why you have the 789 satoshi output, is it generated automated by wallet as a change?

Wasn't able to buy during the dip, exchanges were down.. 

there's a chance most miners will refuse your transaction because it contains dust amount
how did you create and broadcast your transaction? didn't your wallet warn you about dust amount?
I thought all wallets already have built-in safety check for dust amount which is below 5430 satoshi
you should try re-create the transaction and just add that 789 satoshi to the tx fee