After you file

this is exactly my situation.

I checked that box believing my parents claimed me.

(Was going over the stimulus package and saw dependents weren't eligible so i told them I won't be getting anything because they claimed me.)

which is when they informed me that they were unable to claim me due to age and other things. However, I selected that box, do I need to amend my whole tax return or does that fact that no one claimed me now constitute as me being independent. ( I don't believe it does, just hoping more-so in regards to the stimulus since i have been put out of work due to this pandemic and don't want that little check on that box to prevent me from the package when no one even claimed me)