Firstly, "it seems like she's not that intelligent"? Excuse me girl. I think your mother is the one who is not intelligent. MC know at least 3 languages you know? She's very educated, especially in culture.
Secondly, "Can I think the young lord as my gift for adulthood"??? EXCUSE ME?! Girl, your family status and THEIRS are THE SAME. In a way, Vicente is even that of a higher status since he will always be part of a Duke family while you, little girl are dependent on the family you will marry in the future. Know your place. I hope that their family got ruined, so much that don't even think about a young lord from a duchy family, even those from a Count or Baron family won't even want to marry that girl.