Don´t sweat the small thing, Ana. And you should not be worried about being no spring chicken at the time, because it´s never late (or early) to learn something.
Your English going from strength to strength, and if someone say otherwise, please let me know and we will throw the book at him!
I am proud of you, Marcio, Cinnamon, Marcelo, and the list would go on and on... Really, you guys have learned a lot, one can see from your sharing, interactions, and writings.
Your feedbacks and participation have been relevant, this only improves the learning network that is what the Forum is.
Not to mention that you have an eye for detail, a fresh enthusiasm, and very good perception and critical skills! I am happy we have lots of people like this here, the right sort of learner. That can read critically and with a newfound competence to communicate about your own experiences with English.
Here goes a collective congrats to you all.