Hi OP
Try not to worry to much about your essays and exams, as long as you pass you will be fine as first year doesn't count towards your final classification at all. Of course you still want to do well so here are some tips:
Make sure you base your essays on something your generally interested in, if you have the option, and you will be fine
Begin with short essay plans. Your uni should have a section on this on their website dedicated to academic writing / planning. Don't make your plans too long as you could spend too much time on this and your best bet is to just get writing then edit, edit, edit. A mind map will honestly do, with what your going to write in each paragraph etc.
Check your reading list. There will be enough info in this list for whatever topic you are doing.
Then I would suggest opening up two word docs putting the title at top of both and just try to write out as much as you can, whatever comes to mind, doesn't matter if its gibberish. You will feel better for having something written down and you can go from there with them.
Then, contact your support services at university - this always helped me as they are great and have many tips. Even if you send them your first draft of each essay
I would also look over your learning objectives as this is what your tutors are looking for - that you can follow what they've asked of you and you have hit those objectives
When I was at uni I would stay in uni 8-5. Even if I had a 1 hour seminar at 1pm. It didn't matter - having that allocated time dedicated to uni quickly became a habit that followed me through university and I think helped me in securing a 1st.
Finally, complete your reference list as you go, don't make the mistake of thinking you will sort it at the end because this will just stress you out
Manchester phrasebank is a great site for academic writing and phrases to use, take a look
You can easy complete the bulk of this over the next two weeks and maybe set aside a couple of evenings a week where you solely focus on exam revision? Flash cards, online quiz's. Maybe see if you and your friends want to create your own Kahoot quiz to practise on
You have got this OP, stay safe and smash it