I (29F) just passed my driving theory test with a score I'm really proud of on the first try, after studying for it for a month or so. I've been sick the last week to the point where I nearly cancelled (the only reason I didn't was because it would be non-refundable) so I made peace with probably failing. The first thing I did on finding out I passed was call my mum.

However, immediately after congratulating me she asked me not to say anything to anyone else as it would really upset my sister, N. For context we are triplets, and N's got a big complex about not getting the same life achievements at the same rate as myself and our other sister J. J is the oldest (by a matter of seconds), and got her license as a teenager. And since my family couldn't afford to do lessons for all of us at once, I agreed to wait until N got her license to start pursuing mine, since I was the youngest (by less than a minute) and not in a huge rush to drive.

And I waited, and waited, and waited. It's now been a decade (long enough that I'm just paying for my own lessons now), and N hasn't attempted to get her license for around six years. This is because she failed her theory test multiple times. I don't have an exact number, but it's higher than 3 and could be as many as 7. It's not for lack of trying, she has diagnosed learning difficulties which wouldn't impact her ability to drive but have left her utterly overwhelmed in tests. She carries a lot baggage around exams after school was incredibly cruel to her about academic struggles outside of her control for reasons she didn't understand then.

I know me doing this ahead of her will result in her being devastated, and my mum implied it's cruel of me to rub it in her face. AITAH for still wanting to tell people I passed?