Tbh Ni is related to all that. Fi can also relate to beliefs and ideals, but it could be either. Time management I don't think is any NF's strength.
The fiction stuff, not sure, it could be Se seeking yes but also I think I've seen sadomasochistic stuff attributed to Delta. So this may depend on content. I know an EII-Ne once told me he was a masochist. Someone else can correct me on some of this, as I might remember wrong for Delta, but to me it seemed like, Delta is into doing, inflicting or suffering these sadomasochistic pain sensations, while Se/Ni valuing would involve power games of dominance/submission. Also Deltas are all about using tools, supposedly.
Btw I don't think synesthesia causes dyscalculia, so like I have (a different kind of) synesthesia too for numbers and I think it for me helps more with numbers rather than getting in the way
Though the study I linked for you, it does note that being an object visualiser and being like artistic or personal with it (like you are), that can cause problems, as it doesn't help with maths or spatial calculations when those would be the most fitting for the task. Not that people can necessarily choose what mindsets to use for different tasks.
My synesthesia is more abstract, can be linked to systematic concepts, or it's spatial sometimes, or just linked with colours, and other visual elements but nothing like the pictures imagined up by object visualisers.