I agree with the others that math is really not what you should be considering. This frames it as ISFPs are stupid so please don't do that. I'm an ISFP with a PhD who has passed Calc III, etc., lol.

That said, I do get more of an ISTP vibe from what you say.

You are interested in fashion and makeup but how/why? If its more as a means to fit in with others that could be low Fe at play. If its more of a way to distinguish yourself that would lean more ISFP. I personally don't bother with fashion or makeup cause I prefer comfort and those things I generally don't associate with comfort.

I'm an ISFP who usually tested as ISTP. My boyfriend is ISTP. So in typing yourself my view is that what you really need to focus on is your main interests. What do you like to talk about for example? For me it's people, relationships, psychology (people). For my ISTP boyfriend it's his strategy games, computers, etc. (stuff). That's the dominant Ti vs Fi. Or some suggest maybe you can better identify your type by looking at your weak 4th function. As smart as I am, complex logic is hard for me. For my ISTP boyfriend, identifying how he feels is really hard for him.