The British rivals are set to share the ring again in London on September 20 after Eubank Jr claimed a thrilling points victory at Tottenham Hotspur Stadium in April.
Benn brought his typically aggressive approach to the first bout, but believes he allowed his exuberance to play into Eubank's hands.
Benn said: "I'm going to go in there and steam straight into him. Same as the first one, less emotional, shall we say.
"Less heart, more brains, you know?"