Is this worth remarking? A-Level ART

Hiya, never done a post here before, i have an odd case with my art teacher. Since GCSE shes really never liked me and it was obvious from how she talked to me and how she basically made me feel ashamed for even picking the subject. Alas, i got a 6 at GCSE and thought why not for A-Leves.
From the very beginning shes been against everything i did. Changing MY canvas so many times that it wasnt even my idea at some point, pushing me with failing so many times to the point of giving up. All year she would say "youre working towards an A" then it was a C. I dont know where this jump came from but i accepted it and worked really really hard for my uni offer that was AAB. She told me and my mother i was working towards a B, great, right?
i continue working, under the impression im getting an A or B, then comes the before alevels marking and she gives me a D. Right, not the end of the world i asked her what i needed to do and she said to focus on adding as much as i can to my book as my exam piece admittedly was not the best - but she gave it a C. I worked around 12 hours a day for two months (i wish i was joking) and im just saying this to give context how much work i added, tripled my art book size with content, context, inspirations and ideas...to get a D on results day.
I know my drawings aren't bad, and i annotated to the point where she said was satisfactory. She really was severely unhelpful and left me alone for the entire course when i basically begged for advice to improve and im not even going into a art degree. I want to do Law!!! I really dont understand why this happened or what more i couldve done i really really dont know. Im getting it marked again cause my mother just can't believe I got a D, but is it even worth it? I know realistically my grade wont change much but i guess this is for my mothers own peace of mind.
Advice? Maybe if i should resit or whatever... i really want to go to a good uni next year because i just cant this year. Sorry this might be a mess of a read and maybe even illegible with my current state of mind, but any words of advice i would appreciate more than words can express. For reference, i got an AB (+B from EPQ) and then a D in art.

Hey @Dacccii,
Have you checked Clearing for any universities you might be interested in that offer Law? ABD with a B in EPQ is 132 UCAS points, which is above the asking requirement for most Law courses in Clearing. It could be worth having a look.
In terms of whether or not a remark is worth it - it's difficult to say without knowing how close you are to the upper grade (C) boundary. Although teachers are heavily involved in the marking process in A-Level Art, an external moderator is also usually involved to prevent situations like this from happening and to check that the marks are in-line with exam board standards. A remark will likely involve getting another external moderator to review your work, but they would have to completely disagree with both your teacher and your previous external moderator for your grade to see a significant shift (e.g. to a B/A). Nonetheless, as you pointed out yourself, it may be worthwhile to get a remark simply for both you and your mother's peace of mind.
Lastly - congratulations on your A-Level results! Whilst it's understandable that you feel disappointed about achieving a D grade in Art after all the effort you put in, ABD (+B) is still a very good set of results. 🙂
Hope this helps,
Eve (Kingston Rep).