Welcome to the hobby then 😊 Hope you already have a drybox or other airtight storage, ABS and PETG don't like being stored "outside" once they're out of the sealed bag.
I'm looking for a drybox. Maybe I'll do it myself, with silica gel. However the weather is dry AF in my city this season, so I'm not too much concerned yet
Keep a black and white roll of matte pla on hand. Really comes in handy. Other than that order colors for the project. Dry box solutions are at best a stopgap solution. Better than leaving it out, never as good as a fresh roll though.
Then you should be okay for the most part. Still an active dryer is beneficial for those filaments. I bought a cheapass food dehydrator for about €30 and cut some of the plastic out so a filament roll fits in.