Increase protein. Cut out the crap in the diet.
As for the specificities of the workout, I don't really know. I do a strict combat training regimen, so I don't know much about kettleballs, but the dieting should help with any kind of workout routine.
Sig by Toxic
Barnett - Toquinho -Werdum - "Nurmie"
Z. Gurgel - Morango - Rocha - Tiequan