I am trying to amend my 2023 return because I did not state that I am a dependent to my parents and their taxes got rejected which is a big deal

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Your parents will have to mail their return this year. They don't have to wait for you to amend. You will have to amend your return to say you can be claimed on someone else's return. It will take 8-12 weeks to process an amended return if not longer. In the meantime you will probably each get a letter from the IRS to determine who is able to claim the exemption.

Read this on how to amend a current year return
https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-federal-tax-return-curr...