Why do I get triggered by this?

I have always wondered why this affects me so much. I am very careful around my clothes. If there's one stain that can't be removed or is on the clothing permanently I get so triggered id literally buy that same clothing again even if it wasn't noticeable to anyone but me. My friend borrowed my hoodie and gave it back to me with a few ink stains which can't be washed away. I never wear that hoodie anymore because it makes me feel bad.

If I go to school and notice a stain on my shirt that I hadn't noticed before I feel a lot less confident and I think about it the whole day. This is not normal because when I ask people about it they say its not noticeable and so on but I want everything to be very clean, not necessarily my surrounding but only my clothes.

I always try to wash my clothes after having worn it one time because if I wear it and it feels worn I feel dirty and not neat. Do anyone have any idea what this can be?

Why do I get triggered by this?
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