I had a 1099 from them at the end of the year for $50,
If reported as self-employment income in box 7, or as "other income" in box 3 of the 1099-MISC, it's not enough to make a difference on anything at all. You definitely would not pay self-employment tax on that income since it's less than $400, and at best, you *might* pay one whole dollar of income tax on that $50 of earned income. But I seriously doubt you'd even pay that.
I made approx $24k those couple months on my W2 last year
If that's all the earned income you made, it was all tax free based solely on your $24K standard deduction you got when you filed a joint return. So if you have less than that in "earned" income for 2019, it's a waste of your time and effort to even consider getting any credits of any type for 2019, if those credits are based on "earned" income.
