Her expectations of you as her husband so you can have an idea as to whether or not you can give what she requires.
Her salaah, hijaab etc. How much she practises them. Its very important
Ask her if she can read quraan and if she attends any islamic gatherings and so on.
Her aims and plans for the future... Do you have similar ones?
Think of what you expect of her and ask if she is willing to accomodate you in those fields
Her circle of friends; does she socialise often and if so how and where
How she manages her day to day life and her free time and so on. This can give you an insight into how well you could merge after marriage and her lifestyle etc
Ask what changes she expects once she has married. Assess how reasonable they are.
Ask if she works and so on.
There isnt much wrong with asking about anger and stress, its important to know a persons tolerance levels especially if you plan on marrying them. Some are very sensitive and others very reserved. Alot of misunderstanding can happen if these sorts of things are not clarified.
You can ask all of the above points you have mentioned, there isn't anything wrong in doing so. Think carefully about the deeni aspects before mentioning them, dont just voice all your knowledge, bring what is relevant into the discussion.
Allah make it easy for you both and guide you to that which is most befitting. If your union is meant to be then it will be and if its not good for you, it wont happen so dont despair.
Ask her how she envisages marriage in terms of what kind of husband is she looking for?
What are her views on stuff like 'division of labour' or how much the husband should help around the house?
How important is her work to her and would she consider giving it up or drastically reducing her hours if she went on to have kids?
How do her parents treat each other and would she like to go on to have the kind of relationship that they have?
How important is family to her in terms of how often she'd want to see or call her parents or in laws?
Are there any pet hates or absolute no nos that she really doesn't want to see in her own marriage (eg beard or no beard, husband who smokes or often spends his evenings out with his mates or watches tons of football etc)?
I'm sure there's a ton of other things that can be asked but that's all that springs to mind for now.