Yea I know I made the stupid mistake but is there a way to effectively stop it rebroadcasting? I want to send again with high fees…
Since you are using bc., no one is activly rebroadcasting.
As FruitsBasket suggested you can attempt a double spend or a CPFP (follow up TX pays a unusually high fee), but neither is a quick and sure way to replace the transaction.
If you want to double spend the TX you need to export the private keys for your addresses and import them into a different wallet. Preferably something that does not require you to sync for a long time, like electrum. Create a new TX with electrum, sign and save(!) it. Once you saved it, open the .txn file and post its content here so we can help you push it to the network. You can also do so yourself via the interfaces linked here[1] or directly via electrum.
[1] https://en.bitcoin.it/wiki/Transaction_broadcasting