hello, i'm new to this and i just sent a time sensitive transaction of a fairly sizable amount of btc. for the amount, i hit the max button and assumed that the btc remaining would cover mining. I received an error message saying low fee and is showing no confirmations. i didn't realize the fee could be changed.

please help i don't know how to correct this and i don't want to lose the btc.

transaction ID:

1f1572a04425b7dd40b6fc09fc767d8ad8d24b40471cd1530c62ea1414077856


if you're reading this, you're my last hope. I tried a BTC transaction accelerator and it said low fee and wouldn't work. I'm not sure what else i can do.