i can't decide on a deck for my first week back ㅠ-ㅠ

hi! I'm a returning user who's been back on Cookingdom for about a week

i think I folded after Stardust Cookies came out

i'm worried about the arena deck, but when I look at the recommended decks on Cooking Dome Cafe or YouTube, they recommend Mystic Flower Cookie, Gulch Cookie, Brain Armor? But I don't have any of the above cookies... I'm just using a deck centered on the cookies I used to use + high combat power cookies, but it's not easy to tier up in the arena ㅠㅠ (currently Dia)

can I build a new deck with the cookies I have?