Naga tournement...?

As im starting to get ready for my naga tournement im wondering if i should stop doing striking classes and only foucus on grapiling classes?...and im also wondering if i should go down a skill level since im going up from kids to teens?

go in the division your suppose to be in dude
you'll have a better experience,dont worry
i usual dont sweat losing cause im still a white belt
think of it as a "get out of jail" free card

alright thanks man, do u have any advice if i should keep doing striking classes or put them off untill my tournement is over?