How many levels should I complete?
I have mastered the first big chunk of spanish lessons (until 'clothing'). This means that I can progress to the next lesson. But on the progress bar I can see different levels, and by staying on the same lessons and just practicing the 'weekest words' I still get more and more skill points and I reach higher levels (now at level 8), My question: when should I stop collecting those points and choose a brand new lesson? I hope I was pretty clear.
I would say you should move on if you feel comfortable you have a good grasp of the previous lesson, and not move on if you don't think you have the previous lesson down pat. After all, the point is to learn the language, not to rack up points :).