Question: How to get vineeta's scene?
Oof I would have to play it again if you want a step by step... but there is literally a "correct path" through the swim competition chain of events. If you still don't understand that, I cannot help without actively going back and replaying it to remember which choice you need to do in which order for all the event flags.
During swim competition - rudely turn down the conceited swimmer and she will leave oil (not sure if this is the only way to get this; this is just how I got it), retrieve the hairclip from her, use oil for massage, give the hairclip, destroy powder in bathroom, use calm spell. Should be everything you need...just do all interactions before proceeding to the contest.