Nah, you don't need to be all that smart. You just gotta be willing to spend time learning. It's not even all that difficult as long as you don't get too hung up on the old Windows or Mac way of doing things. There are some great beginner friendly distros these days, and they tend to work pretty well without too many issues for most people. If you do have issues, there are chats, typically on IRC, where you can ask for help, and google can go a long way if you're decent with it.