Watch as the Prince asks Rachel once again, "Did you really do this?" and watch as Rachel once again thinks the Prince is a dumbfuck who can be fooled so easily. Seriously, he's making it super obvious he doesn't believe a word of your shit and the second he starts taking you seriously he'll have you cook some cookies while he watches and then you'll crash and burn so hard.
Having the good sense to know who to rely on and how to best draw out their talents is an excellent skill for a Queen, aside from Marie (due to her magic dreams) no one can be good at everything, downplay your skills, say that you were involved but it's thanks to the help of your great servants that you were able to accomplish things. Even spread the praise so that instead of heaping it all on Marie you spread it out among your servants, maybe even spinning a tail of how you met them or noticed their talents, use it to reward your servants by getting them prestige, make yourself look like a charitable person who knows how to bring out someone's good talents, trap your servants in a position where they can't betray you (by selling you out to the competition) without exposing themselves, and if the Prince finds out that you're full of shit you can play the victim card that it was your servants who were taking advantage of Marie and not you. Going about things the way they have so far makes it so that the second Marie blabs or needs to go on an errand for the Prince, something that you know could happen given how close she is with him, then you're up shit creek and need to explain why you fucking lied to the Prince, showing that you're nothing but a snake without anything to show for her own skills. We're not talking about rocket science here, just give yourself some level of deniability.
