I don't think you're eligible. My brother went through the same thing with my niece. He claimed her on his taxes last year and now she's 18 and the money is for under the age of 18 if claimed as a dependant. I don't understand how you filed taxes for the past two years and your mom claimed you as a dependant for 2018 and 2019? But please don't take my word for it check into it to be sure, I could be wrong. Good luck.....
