Amended my 2017 tax return to remove my dependent, but in my account, I only that original copy not the copy I filed and that was accepted

If you completed your amended tax return and have already mailed form 1040X in to the IRS; then you may track the status of your amended return 3 weeks after you file using the link below.

https://www.irs.gov/filing/wheres-my-amended-return