The internet is a complex medium and it can be intimidating. There is a lot to learn if you're planning on having an internet presence such as a website.
However it doesn't need to be stressful. As long as you take some time to learn the basics you'll find it's not that hard. Remember - most people who make mistakes with their websites do so because they didn't do their homework. All it takes is a few hours effort to put yourself in the group of people who won't make these mistakes.
Obviously, the more time you invest, the more successful you will be.
Move on to How the Internet Works