I am new to blender, I was trying to make the infamous donut using blender guru’s tutorial. While I was on part 9 of the series an error occured, the texture of my donut became all weird and gross, what can I do to fix it?
Welcome to BA 
I’m not sure what’s wrong here, could you please share your material setup?
Everything looks correct here. What about your current texture isn’t what you’re looking for? I’m not super familiar with the donut tutorial these days, so I’m not sure what you’re supposed to be getting
I’ll look on the bright side, plenty of 3d modelers haven’t completed the donut, so I guess I’ll move on and try something else
Welcome to BA! And to the brotherhood of people who’ve gotten their butts kicked by that bloody 
.
Far be it from me to discourage you to put that darn donut on the back burner; I did that myself, and went to simpler tutorials first to get a grip on Blender. But I think you’re giving up just a smidgen too soon. I wanna help fix it so you feel at least some accomplishment!
IIRC, you’re at the point where you created an image texture for the lighter strip along the waist of the donut, yes? I see your lighter strip doesn’t show up at all and the marbling is very dark – is that the problem? If so, that’s because in the Overlay node, you have set the Fac all the way to 1.0 – that means the node only takes the bottom noise texture into account, and not the image texture with the white strip. Adjust the Fac until you see enough of the strip and enough of the marbling to look pleasing.
Does that make it look un-gross, or is it something else?
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Hi there,
A nice dandy donut, even if a bit overcooked 
1st, if the separate image is the middle part painted, or otherwise texture painted, try driving it from the UV coordinates, so plug UV into the image’s vector. May or may not help, but a UV unwrapped texture painted should follow the UV coordinates.
2, if you applied scales later in the process, the object coordinate of the noise texture may change, so it may be larger or smaller than before. Make sure to always apply scales before getting into procedural texturing, otherwise later doing so may mess up your texture 
Last, but not least, keep it up, it will be great!
Happy blending!
Cheers!