Start with thick yarn and a large hook - that way the stitches are clearly visible, you won't strain your eyes, plus mistakes are easier to spot. You can always try thinner yarn later.
Look for tutorials on YouTube specifically for beginners, where they show things slowly. They break down the basic stitches and the amigurumi ring, which you'll use over and over in every project. Once you get the hang of working in a spiral and increasing and decreasing stitches evenly, you'll be able to handle any pattern on your own. What size are you thinking - tiny miniatures or bigger ones, like for a gift?