Yeah I’d recommend not to overthink it. Just cook what you usually cook, especially the kind you just “know” how to do without any recipes, eyes closed.

But if you really don’t have any such, your mom might be right. In which case you have some time to prep before if you really want to prove something that isn’t necessarily true as such. Enough to learn, enough to get some habits and routine going so you won’t need any references at hand.

Trying too much or something too new to prove a point might turn out to prove the opposite point you want.