Analyzing Deals for a House Hack

[Steven Sestir]

I am a newbie try to analyze deals for a house hack and when I do so I am putting down 3.5 to 5 percent down on the house, but when I get the finial numbers cash on cash return is around 12 % but my cash flow is very low to $17- $30 dollars.  I am confused if I am doing something wrong, can some one help me explain too me what I am looking for or point me to video or article please.  

Thank you