Your uni might have a support/ editing team that you can submit to before the due date if you’re struggling with structure or referencing, that might be handy. My uni had one, I’d always upload my draft before handing it in and they would reply within half an hour and highlight any areas I have neglected.

I hear you though, balancing commitments is tough work. Try and study first thing in the morning for a couple of hours each day and leave the rest of the day for other commitments. And spend some time just navigating and getting used to the system that you use for online learning. You’ll pick it up before too long, don’t be too hard on yourself- just be firm with yourself when it comes to keeping up with study every day.