Don’t worry, I think it’s perfectly normal thing to wonder and I thought the same things when I wanted to make the second blog.
Tumblr made it very easy to make secondary blogs, you only need one email account to sign in to all your blogs and once you log in it’ll take you to your primary blog, from there on you can easily navigate to another blogs.
You’ll only have one dashboard where you can see the post of all the people you are following, you can like and reblog them from the dashboard to your any secondary blogs. You only need to choose the name of the blog where you want to post when reblogging or using the Tumblr bookmarklet.
Maintaining the separate blog is very easy too, the customization, messages, followers, members, draft, queue, post features are separate for every blog so you won’t be confused.
Try it out and you’ll know how easy it is and good luck with your Alice in Wonderland blog :-)
Happy Tumbling and have a nice day !!!