Re-Golding your tree?
Does anyone have an effective way of "goldifying" your Duolingo tree? I'm doing French, and I haven't done much Duolingo in a while, just enough to keep my streak. I'm looking for efficient ways to practice. (Possibly different than just Strengthen Skills if that's better)
Using the "strengthen skills" button, or simply strengthening from a specific skill should do the trick. Sometimes, a skill may become "stuck" (meaning it simply won't strengthen, even if you've tried strengthening multiple times). In this case, try redoing all the lessons in the skills; this seems to work for this problem, or at least for me.
I found it very effective to strengthen the tree a lesson at a time if you want to keep it gold. Sure, you can use the "strengthen skills" if you want, but the lessons seem to stay gold longer when you review a unit. You can also entirely redo units if you want.