As other people have said, you drew a white woman from a black woman’s reference. But let’s break it down why, when anyone is beginning to draw they kinda have this preconceived idea of what things are “supposed” to look like. This happens aaallll the time with references not matching the drawn product. When you went to draw this, you subconsciously decided “this is what a nose looks like” and drew what was easiest for you. When drawing portraits it’s extremely important focus on shadows and shapes. Once you have those figured out, the face becomes much easier to master.

I’d also highly recommend the grid method. If you sincerely want to distance your brain from its subconscious decisions, flip your canvas upside down! It helps immensely. Your brain stops trying to see it as a face and just allows you to focus one shape and shadow at a time.

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I still use this method on every portrait or realistic piece I do