You get into a Catch 22 which prevents progress
Hi I have got down as far as Modal Verbs, but I cannot progree any further as I am spending all my time trying to keep the experience bars at full rather than moving on to new topics! How do you move on and maintain the bars at full without spending your whole day on Duolingo???
The bars go down too quickly! I go in every day???
What is the secret? It is sooo frustrating
I know, it is very frustrating! But try to believe that the repetition is consolidating what you've learned in your memory, so that you really know it, rather than know it just well enough to pass the skill. When you want to finish the tree, it's very easy to grow impatience, which I think is the root cause of the frustration.