Was the fee too low? I selected the *high* option in my app..
It hasn't been too long since you sent out the transaction and at times when the price of Bitcoin climbs up, the network gets a bit clogged, increasing the competition between transactions to get confirmed. Wallets and apps use different algorithms in determining the fees to be paid, but it usually adds to the average at the time, to speed up transactions from their sites and accommodate changes in the network.
Here's your transaction details on blockchair:
https://blockchair.com/bitcoin/transaction/19a0af258f4f6632d5669e7aeb7d515efc24251ae59ffa6e69f74a9ac4a7e961what's a good amount per Byte to be safe?
There's no good amount on feerate, it depends on the state of the network at the time it was broadcast.
About your topic title:
Please help to accelerate my transaction, there are limited options on accelerating a transaction:
• Using a priority fee
• Using RBF (this can only be set before the transaction is sent, in your case it is not available)
• Using CPFP, here you send the output of the unconfirmed transaction in a new transaction using high fees to cover the new tx and the parent one. A miner would have to confirm both to claim the fees.
Other services do not really work in speeding up a transaction.