Hi a very warm welcome to the site. Pacing yourself and identifying times when you can dedicate yourself to study will help you feel more in control xx
Contact & visits from your tutor should also be explained now so you know what's happening. Email TSW, follow their Twitter feed and generally be aware that this is your qualification and the quality of their support and teaching will impact your professional practice and development.
If you're in Wales? it might be useful to know that any textbook you do get will almost certainly have a bias towards English legislation and England's Early Years framework EYFS so you will need to check and relate your responses to each of the unit's criteria using Welsh requirements.
This
Level 3 CYPW handbook covers the CCLD units but was published in 2010 so much of the legislation has been updated, page 48+ looks at the rate, sequence and patterns in children's development and this
Child Development book explores ages 0 - 19
Rate and Sequence of children's development
https://www.silkysteps.com/forum/showthread.php?t=12275
Get to know gov.wales :) and your own Local Authority's website
Foundation Phase framework and the
minimum standards on CSSIW research the standards that are relevant to your type of setting.
Next are the policies and procedures from your setting. As the course progresses you'll need the information they contain to know how the setting operates. Your job description, role and the responsibilities of your job will also be needed.
About plagiarism
I hope this helps a little, please feel free to post whenever you want to xx