Asking here won't help you.
But asking here first will give anyone in need with siimple guide on how's and etc. But yeah, asking blockchain might help, but for this issue, same answer you will hear from blockchain staff related to a wrong password with a lost/unbackup seed like what Lucius mentions.
That's what the use of this forum asking information before having decisions or gather a piece of knowledgeable advice from those who have experienced here.
@OP, by the way, is your problem now solved? All information was stated above I think there's no reason you can't recover your wallet account in Blockchain.com. You must have a lesson to learn here, first always keep your back up seed(it must be 12 words mnemonic).
And second is when making a password make it sure it is correct.