https://blockchain.info/tx/4ed49e18d91cd8182a98dbb932b6a2102132f6901339ed93738f7ffd26ea631b
about cpfp - I can control reciever's wallet too, do you know how to use CPFP on the bitcoin core?
about confirmtx - I just try and at second attempt service said "Transaction queued already!"
there are two outputs, if one is your (change) address you can do CPFP
by simply using that unspent in a new transaction but with tx fee to cover both transactions
if the new tx you create consist of 1 input and 1 output, tx size will be around ~200 bytes
so you set the tx fee on the new tx something like 0.00065 BTC this should make it average 150s+/B for both tx
( 225+200 ) * 150 = 63750 ~65k sats , if you want to increase fee rate change 150 to higher number