Lauren, i need your help urgently.
I know the book, i know the prompt, i know the arguments, i know the quotes. However, i dont know how to put them into words. I sit here for hours, literally, whilst the ideas pop up in my head, but I CANT get them to paper, i just cannot find the appropiate words to sentence these ideas of mine
Alrighty, that was good timing
So unlike the above, this is a 'I know what to say but not how to say it' case.
For starters, are you able to communicate things on a very basic level? ie. using very simplistic language and basic sentence structure? I'm assuming since you have some idea of the arguments that this is possible, so next: could you communicate this verbally? Some people find it easier to convey concepts by speaking than they would writing it all out, and it means you don't have to worry about formal essay structures or anything. If you find yourself stumbling here, then it probably is an issue with your understanding of the content. Revisiting some study guides or sample analyses/essays will probably help you sort your approach out.
Alternatively, it might be an issue with the vocab you have at your disposal. If you find yourself struggling to think of synonyms to reword your thoughts, or otherwise unable to articulate your interpretations and ideas, you'll need to build up the language to do so. Start with the most basic form of expression (eg. character X does very bad things, which makes the audience feel like they don't like the character) and then, use every English student's best friend: thesaurus.com to explore synonyms of 'bad.' Don't treat this as a test, or a very quick, once-off exercise. When the thesaurus spits back a nice word that you think fits, look it up in dictionary.com; explore synonyms of that word; think about hoe using another word would change the meaning of the sentence (eg. character X does malicious things vs. character X does repulsive things - these don't mean the same thing.)
Do this more and more, and you'll find the same words keep cropping up over and over again. These are the kinds of words you want to be keeping track of in a workbook or notepad, and as you accumulate more synonyms, start interchanging basic words for sophisticated ones. But the only way to improve your confidence with these words is to find, document, remember, and practice implementing them. It can be a long process, but it's worth it in the long run, and the sooner you get started, the better.
Finally, if you're having issues with the actual essay writing part, then an extensive plan is probably your best bet. The process bangla_lok has outlined is excellent; start small and work up to big arguments.
Don't panic about not being able to just churn out 1000 words of magnificent prose just yet; you're only at the start of your studies, and you'll have to do a whole lot of fine-tuning and exploration throughout the year. The students who are able to write an essay with no hesitation or qualms are probably doing something wrong; you''re meant to have these troubles nice and early so you learn how to combat them before it's too late!
...that was a bit melodramatic... I meant before you get to a SAC or exam and don't have the resources to ask questions, or the time to contemplate your approach
It's never really too late until ~30th of November or whenever the exam is this year.
edit: if it's of any comfort, you might not be the type of learner who benefits from churning out essays as a means of practicing. I would rarely even start writing pieces until a week before my SACs at the earliest, because I simply needed more time for my conceptual understanding to ferment and develop. In the meantime, I'd read heaps of analyses and other people's essays until I was completely familiar with the task and what I needed to do to get it right. But if I were to try writing an essay only a few weeks into studying the text, I'd either hit a total mental roadblock like you, or I'd just descend into mega-simplistic evaluations or summaries that wouldn't showcase my abilities, or help me learn.
By contrast, I had friends who would do nothing but write essays for English, no matter how mediocre they turned out, because for the sake of their marks, they found it more helpful to just get their brains in a writing mood, and worry about the content later.
It's best to work out where you fit on this spectrum and tackle your study from there