More of a general question towards the course itself....am in trouble if I really have no prior experience writing code/HTML/web programming? I'm a bit nervous to be honest.

I came across this site dealing with HTML through Google. Browsing through, I found it to be great, even for myself, a stone cold beginner to this stuff. It's pretty much a complete tutorial regarding HTML starting from the most basic parts all the way to the advanced material and know-how. In the page itself you will see [Previous] and [Next] buttons which walk you to the next level of the tutorial, down the left side of the page is each part of the tutorial. Hope this helps!