Unfortunately, These three popular accelerators might not help you as stated below: (Your Transaction is 0.79 sat/B)
However there are still a few options you can try but it depends on which walllet you are using. Would you mind telling us?
Meanwhile you can try these options:
I'm not sure if they are still offering this but you can ask the miners here like Quickseller and macbook-air. You can try offering any amount to increase your chance.
Or use Coolwave's accelerator services here in our forum. Link: https://bitcointalk.org/index.php?topic=2204426.0
Lastly, Wait for your transaction to be dropped. There's no exact time for this and it might take longer.
I accelerated a transaction which similar in size and fee (1sat/byte) on Antpool but up until now, its still unconfirmed. It's either because antpool's accelerator service prioritizes transactions with a higher included fee so the 1 sat per byte at lowest priority furthermore every minute a new TXID is submitted so this decreases your chances or maybe they just don't accept transactions with this fee.
As for viabtc, It doesn't meet the required minimum included fee (10sat/B)
And Confirmtx seems having a problem???
lets see if ConfirmTx can really stand up for his name, there was a bit ruckus on his thread.
I also have a few stuck txs about same BTC (~250k sats) with ~1sat/byte fee but 3k in size
they are still unconfirmed to this day ~18 days
and still displayed on bc.info and blocktrail
If op or someone uses the above accelerators for this transaction, The chances of getting it confirmed is low.
As for viabtc, It doesn't meet the required minimum included fee (10sat/B)
And Confirmtx seems having a problem???
Uh thanks very much. How did u do that? Do u know ppl from there? 
ConfirmTx I already tried a few days ago though. Unfortunately didnt do anything
ConfirmTx I already tried a few days ago though. Unfortunately didnt do anythinglets see if ConfirmTx can really stand up for his name, there was a bit ruckus on his thread.
I also have a few stuck txs about same BTC (~250k sats) with ~1sat/byte fee but 3k in size
they are still unconfirmed to this day ~18 days
and still displayed on bc.info and blocktrailIf op or someone uses the above accelerators for this transaction, The chances of getting it confirmed is low.
However there are still a few options you can try but it depends on which walllet you are using. Would you mind telling us?
Meanwhile you can try these options:
I'm not sure if they are still offering this but you can ask the miners here like Quickseller and macbook-air. You can try offering any amount to increase your chance.
Or use Coolwave's accelerator services here in our forum. Link: https://bitcointalk.org/index.php?topic=2204426.0
Lastly, Wait for your transaction to be dropped. There's no exact time for this and it might take longer.