Do I have to dress openly and be skinny to be attractive 😢?

Even if I dress like this, it looks makeshift on me, I can never fit it myself. There were people who said to not dress like unmarried aunts. But I want to be attractive somehow.. Is it necessary to dress openly and be thin for this?

I already started dieting and sports, but I need it right away.. So, is there any other way to be attractive :/ There are many people who say that i am attractive on Instagram, but I can't believe it..

Do I have to dress openly and be skinny to be attractive 😢?
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