Is it normal to get to level 9 in German in 2 days?????????
In addition to the comment of KenBookme:
Levels are not related to how many skills you have learned.
Here is the link to the explanation for "How many XP (experience points) do I need te earnto go to the next "level" http://duolingo.wikia.com/wiki/Xp
And this is the link to a discussion with helpful comments for new members: https://www.duolingo.com/comment/22334361