[lIl-IIIl]

The exact opposite happened to me in math - math went from hard to easy. I attributed it to brain changes during puberty.

[pfannkuchen]

It also gets less boring and more abstract at some point. Engagement can make something feel a lot easier.

[BeFlatXIII]

I went from terrible at memorizing basic arithmetic to top of class at doing real math.

[emikulic]

I used to be bad at math but then I did a 360° on that.

[HWR_14]

Sorry, I intended two separate concepts. Puberty can mess with motivation. A new math subject can suddenly present a mental block that is hard to overcome.