If you were claimed as a dependent on your parent's tax return in 2018, you are "not on the list" to get a stimulus payment.
If you are eligible to be claimed as a dependent on your parents 2019 tax return, and are over 16 at the end of 2019, neither you nor your parents are eligible for a stimulus payment for you. Note that it doesn't matter if your parents actually claimed you as a dependent, it only matters if you were eligible to be claimed as a dependent on their return in 2019.
If for 2019 you are not eligible to be claimed as a dependent by another person, and file a 2019 tax return, you will "get on the list" that way.