Screwit, four languages it is.
At my advanced age, I don't know if I'm going to be able to reprogram my brain into accepting that there are six languages,* but by gum I'm going to try.

Meantime, the Duolingo owl wants to points out that it's useful for improving memory and concentration. That's probably true, Duo, but I've already got change ringing doing that...

Yes, I know intellectually that there are more languages than that, but ironically the part of my brain that does languages has traditionally been unwilling to accept that, and so can do English, Latin (reading only) and EITHER French OR German, switching between the two only with difficulty. We'll see whether doing both of them plus two every day will make a difference, or just lead to brain melt.