Filed but accidently put myself as a dependent

Hello, I filed early on but was notified by my Father that I am no longer a dependent but I filed as if I was. I went to try to amend my tax return but I was never prompted with the question "will someone claim you as a dependent?" or anything similar. I only got asked if I was claiming any dependents which is no.

Do I need to fix it or is this correct and as it should be?

If not, then how do I fix it? I can't figure it out and support has been useless so far.

Thanks