I've taught on access courses.
Everyone is in the same boat, you are on an access course because you did not do the conventional GCSE / A Level / uni route as a teenager.
If you want to do something now learn how to reference using Harvard referencing, and get some referencing software - you can get free online software.
Also be proud of your own work. I find many access students plagiarise not because they are trying to cheat but because they think, "this is so much better than I can write", it may well be, but as a teacher / lecturer I do not care about how well someone else has written I care that you have understood. And if you have not understood ask, don't just put something down.
It is better to hand in half a piece of work than miss a deadline.
The unit most people find hardest is the biology / physiology. The level is quite odd in that the uni text books go in to too much detail and the GCSE A level books are on the wrong topics.
Also get a diary and a post it note. Your post it note is your time to study/do homework and it takes up a day or a half day. You use the post it to blank out a day to study but because it is a post it you can move it, never move it longer than a week and stick to it, this is important, you NEED that time.
Good luck, I'm sure you will be fine.
this is the book I use for Biology with access students www.amazon.co.uk/gp/product/1444334433?psc=1&redirect=true&ref_=oh_aui_detailpage_o05_s00
don't rush out and buy it, your teachers may (probably will) use something else. But consider it later on or have a look at it in the library. I chose this one as it gives all the relevant information and because it should see the students through their nursing degrees and I'm aware £25 is a lot for many (most students).