I am in the process of amending my 2019 return but i havent submitted it yet because im really confused about something and ive got to get finished with it today. Is

Okay i will go get those numbers for you and come back and share it with you....but what you're saying about the refund a meter at the top of the left hand side of the page doesn't matter what it says?? And could it be perhaps that the difference between the $4,640 that I received in my refund on my original return in 2019 and what it's saying now being $4,084 that I'm getting back now after I'm done amending it would be all that matters? Would be what I would actually owe meaning $556???

Yes ... that meter reflects what is on the form 1040 NOT the 1040X so if you didn't look at the 1040X when you posted then I can see you being very confused. $2000 x 25% = $500 would be about right for adding SE income (15% SE taxes + 10% federal taxes).