It doesn't make you anonymous. Torrent protocol wasn't designed with anonymity in mind and there are a million ways you're going to leak your actual IP address.
Tor is a TCP only network.
While this doesn't give you the anonymity you wanted, it will hurt the network for other users.
I2P doesn't behave like Tor by default, it's designed around connecting to internal peers within its network so your browser won't treat it as a proxy but default and you have to specifically configure it to route traffic to the I2P network