That's only slightly fewer days than I've been working at my current job at which I'm one of the only people who don't speak Spanish. It motivated me to try to learn as quickly as possible. So, I've been doing Duolingo every day, but I also use other tools to learn. Audiobooks, TV shows, movies, etc.
The reward for this on Duolingo was pretty meh. It's the same animation you get every time you add a day to your streak, and then you get to claim a reward for 100 gems. It would've been cool to see some sort of festive animation for the landmark occasion. I'll survive, though. I'm not going to go to the forms and cry about it like they owe me something. I'm sure someone already has, anyway.
Onward!