One step you can take now that will help with learning Old Icelandic is to learn to form, in your own handwriting, the special characters in the Icelandic alphabet, especially 

   ð

   þ

   æ

   œ

Later, if you start to learn the language, you can add a useful pedagogical activity: copy -- in your own handwriting -- the words, phrases, and sentences you are learning. If you already have practiced writing the special characters, you won't have one additional thing to learn along with the new vocabulary and grammar you are learning. 

Rob