Welcome to Project Management Concepts.
You will need to give yourself time to study and do your assignments per day. It is best for you to form a habit of learning. For example: every morning before work or lunchtime, or whatever time window suits your ability to focus on the study material—and as routinely as possible in the same timeslot to form a good solid habit for yourself.
Read your assignments carefully and answer as best as you can.
Enjoy your new journey.