I'd go with WordPress because it lets you do more, and lots of people use it to help each other out. It's suitable for many types of websites, not just blogs. For learning, try WPBeginner or Lynda. They have easy-to-follow tutorials on everything from basic to advanced. WordPress might be more complicated to learn than Wix, but you can do more with your site. Check out some YouTube tutorials to see how it works! However, I also suggest you check out this
resource for learning web design. These tutorials are offered by a company that provides website development and optimization services. I have used their development services, and I know how good they are in this field. Their tutorials should be very accurate and helpful.