Hey!! First off, I love your Ib icon! That's one of my favourite games haha
I'd say (this is a personal thing, not necessarily how the guidelines/mark schemes might put it at your uni) I normally try to have about 500-700 words per
major point -- but major points are made up of several smaller points. I try to make sure that the concepts and themes have enough room to breathe (you might have been taught PEEEL at your secondary school, which is Point - Evidence - Explain - Evaluate - Link --- I genuinely still think about this when I'm writing! You have to make sure you're giving each thought the space it needs, and linking them all together for a cohesive thesis.
So, for example, here's a sample paragraph from a Frankenstein essay (2500 words) I wrote in second year:
I'm introducing a lot of ideas and quotes, but they all build together to support one cohesive thought: we're discussing the miniature and how it affects our perceptions of Caroline as a character. It is more important than her; it literally reduces and miniaturises her. This is about 200 words, and can easily feed in next with either another point about Caroline or a similar situation with another character (I went on to talk about how Caroline feeds a cycle of maternal dependency into Elizabeth, and also into Victor in a "i make people out of corpses" kind of way, lmao).
And honestly, I wish I could help more than saying "I just plan in bullet points and scream", but that's kind of what I do tbh!! Here's what the start of that paragraph looked like in the planning phase:
I kind of make bullet points on the subject (so this essay was on maternal absence, so my three points were on the three maternal figures, Caroline, Elizabeth, and Victor) and then try to structure my many ideas in a way that flows and makes sense as a cohesive thought.
I hope this makes sense! If you DM me, I can link you sample essays and try to give you some better advice. I am
terrible at this, but I really hope it helps!!!