I am up to level 5, but can't seem to open it up . I can keep practising what I have learnt to here but want to get into level 5. How do I do this?
What do you mean by "opening" level 5? You receive points for taking lessons, for practising and translation. Your amount of points is represented by your level, but reaching a new level doesn't unlock anything. Currently you need to complete Basics 2 before you can try the lessons Food or Animals.