Stimulus check - amended taxes

I recently filed my taxes, and put that I was claimed as a dependent by someone else. However, I realize that I am not going to be claimed as a dependent by someone else, and would like to amend my taxes. 

 

My main question is, if I amend my taxes for 2019, will I still be eligible for the COVID-19 stimulus check? Since dependents don't receive any money, If I put that I was claimed as a dependent by someone else, I will get nothing. Like I said, though, nobody else is claiming me as a dependent.  Will it be too late if I amend my taxes now? Or are they consistently sending out stimulus checks once people file their taxes?