Curtains?! (In Blender)

I've been trying so hard to learn how to use the Cloth Modifier in Blender. I want to make a set of curtains.

I followed an online tutorial exactly and got zilch. When I try to pick a frame of the animation live, I can't because it's choppy and slow on my computer. When I bake it, I can pick a frame easier but I can't control it as good and I end up with the following:

LEFT: The tutorial result / RIGHT: My result

Does anyone know how to use the cloth modifier really well could give me some tips?
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