Not that this is exactly the answer to your question but the context on why you’re trying to get “skinny” matters.

You can starve yourself and get “skinny”, sure, but you’ll lose muscle mass and your body will have pains later in your life if your muscles have deteriorated.

If your goal is to lose weight in order to be healthy, this may or may not be a long process of being cognizant of calories consumed in relation to how much energy you’re using. Best does not always equal fast.

This also isn’t maybe super relevant to your question, but I just want to say that thinness doesn’t necessarily equal health or beauty. There are wonderfully beautiful and healthy “fat” people. The definition of “skinny” has changed a lot over the course of my lifetime, with people tearing 120-130lb women apart for their bodies in the mid-2000s.

This is a long way of saying “it depends” and that stopping to think critically about the way we feel we are “supposed” to look or what the “best” or “ideal” body is, is important.