How can you possibly lose so many times? All 27lvl duelists are easy. Circus trick needs two monsters - one always attacking second in defense position. I beat them easily with my ritual deck. Brutality you use de-spell and your usual buffs. They are easier than they look. There are two ways to go about duelists:
1.Increase your deck's strength.
2.Disable the strength of your opponent.
Or just wait until we get Jinzo (which should be soon).
Lv27 SD Decks like Circus Trick, It's All Traps, and Reverse Trap, completely relies on their Trap card to function (Labyrinth of Nightmare in Circus Trick's case). Jinzo easily and completely stop those Traps, and make those decks crumble apart.
Jinzo just negate trap’s effect, nor monsters’ effect, if you have Angel07(negate monsters’ effect) and Jinzo(negate trap’s effect) in the field, problem solved, but both of them need 2 tribute monsters. So i choose the simplier solve