Deductions & credits

I have two kids by two different fathers.  One lives with me full time. The other 50 50. I filed taxes in 2018 and claim them both. 2019 I did not do my taxes, I didn't work and I get  Social security so Iet the father claim so at least they would get something but I have one kid full time who also gets social security sent to me  sso will dad get the 500 cause he claim him this year and I didn't do taxes, so when the IRS looks at mine they will see the 2018. When I claim.  Both. Now the 50 50 Child I feel like should be split.