Since waiting on unconfirmed transactions for 1-5 hours is too long already, I can help you to accelerate your unconfirmed transaction for free, just follow the instructions here..
Bitcoin Mixing service provide the ability to exchange your bitcoins for different ones which is not related with the real owner. It is a service where used to mix one's funds with other people's money, designed to puzzled the track back to the funds' original source.
This method is for Blockchain.info's new wallet that is made of a BIP39 recovery seed. You must have the backup of the 12 recovery seeds/phrases from Blockchain.info's wallet.
Vanity address is a normal bitcoin address that starts with some letters/string of characters that suits to you. In other way it's a customized bitcoin address that something from your name or screen name, code name etc.
Bitcoin is a form of digital currency, created and work electronically. Nobody owns and controls it, it is an open source designed as public. It’s the first decentralized peer-to-peer payment network that is powered by its owner or its users that no central authority.