Help with welding?

[Squareforceone]

First of let me say i have no expericence welding, i have read a lot online but only tried it once and didn't have the right settings. I have a cheap 110v flux core ONLY welder and i have no idea how to adjust it for what i'm helping i'm terrible with knowing guage of metal and stuff like that any tips? I have it loaded with 0.30 flux core wire and want to just put some welds on my scrap metal, but the dials suck the heat setting is just low or high and there aren't numbers on the wire speed knob... any help would be great, i posted pics of the welders face plate and my metal