What am I doing wrong? ? Welding help needed

Thanks for all the help guys. . The pic is jus the last part i tried weldin. . I had tried a bunch of different methods, all the ones you guys stated, so i will jus clean the metal more. . The cab has been sittin outside for over 3 months, so rust had started to have its way. . I had used a wire wheel on my grinder and cleaned it all up before i started welding, I jus got sick of gettin wacked with high speed lil wires comin off the wheel ! ! ! haha. . but i shall try again! ! Hopefully make some progress on this darn truck. . . .


-Josh

def. try a flap wheel disc, 60 or 80 grit