Hi Matadd,
Firstly, I empathise with you - finding motivation to start writing assignments, after a week of lectures is not unusual; I have been there. The thing is, whether you realise it or not, your brain is probably tired and overloaded. The first week of uni is hard, especially if you haven’t studied at this level previously. Above all, try not to worry. Rest is important, so getting a few good nights of sound sleep will help a lot. Also, it does no harm to talk to your tutor and lecturers, outside of lectures - in fact, most will welcome your doing so!
When is your first assessment deadline? (It should be towards the middle / end of November, because there will be lots of information and resources not yet given, which you will need to “read around”). After getting some sleep, a good idea is to start planning your assignment before you start writing - the old adage is true: “fail to plan, and you plan to fail”. There are several good assignment structures online, well worth considering (e.g. PEEL, etc. - try entering “academic essay structure” in a search-engine - there are examples). The key here is careful planning. What does the assessment require you to cover? Look for the keywords: explore, evaluate, discuss, etc. Arguments are simply the views of other academics/writers, etc. - take time to read them fully, and work out what you need to use - weigh the proponents but don’t argue directly against them; academic politeness, respect and diplomacy is vital.
Most importantly, please resist the temptation to use Artificial Intelligence (AI) essay writing apps. Most uni’s use software to detect this. Using AI will result in a poor grade, or even an Academic Offence - to be avoided at all costs!
Sleep well, eat well too! What you eat is important - good, wholesome meals, eaten slowly, rather than pizza, etc. Your brain needs proteins, vitamins, minerals, to enable you to think - and question, with rigour. Developing a good personal “daily routine” is also worthwhile…
Hope this all helps!