Congrats! Not rare overall, that is the “poster” version at this conference AKA lowest level of acceptance (below quick shot and podium). That being said, if it’s the main scientific forum (not med student program) that is definitely admirable as a student and a bit more rare, it’s an accomplishment to get anything accepted to a national meeting as a student.
Published abstracts are essentially duplicate citations of your presentations, so most won’t list them (especially not on ERAS, pick one or the other). On your personal CV if you choose to keep track of them, they should go in a separate section for published abstracts. Including them with your actual publications can be seen as misleading and trying to inflate your number of pubs inaccurately