what to do when cold deck?

[allyasia]

i recently move up a level
and the cards are really dead.
i after over 1000 hands, i know i can beat the player at those level, the only problem is, cold deck.
i lost 3 buy-in tonight at the new level.
usually i would drop down to more comfortable level, but i know i can beat those player easy.
my question is
i went in with 20buyin, now i only have 17buy in.
should i drop down, until reach 20buy-in again or do i ride out the bad luck.