I'm not sure if you meant that she tried to kick you in the stall, so you put her outside... or if she tried to kick you, you beat her some but stopped before she dropped dead and then put her out... :) If you did nothing and just stuck her out, not a good idea, she needed a spanking -- keep that in mind for nect time. If you did whack her then good. :)
Anyway ~ I would suggest roundpenning her, if you have one available. However I don't agree with the idea of keeping her on a shorter line... or any line at this point. If she isn't respecting you chances are she will just try to drag you, and if the line is shorter than a lunge line she will be within kicking range. Also, it's not good to work her on that small of a circle. I would stand her in the middle of the roundpen, attempt to pick up her foot, if she so much as thinks about kicking you, get after her right away and make her RUN. When YOU are ready for her to stop, let her stop then try again and repeat until she gets the picture (I doubt it will take long). Also just general roundpen work will get her focused on you and respecting you... Make her trot/canter, change direction, etc. a lot... You can look up good exercises online or check out a roundpenning book or video.
Handling her a lot, leading her with a chain over her nose if necessary, and not taking any crap at ALL will all help. :)
"The white horse moved like a dancer, which is not surprising: a horse is a beautiful animal, but it is perhaps most remarkable because it moves as if it always hears music."