I used https://learn.mangolanguages.com/ to get to something like ~b1/b2 in French after a year. I did a lesson or two every day, and did all of the review, pretty much much every day.

I spent 8 years in jr high - college studying German without having any real competency in German, it did however teach me something about learning another language.

Mango isn't gamified. Its basically a curated set of flashcards, and the lessons are essentially flashcards themed together. There are some extra explainers throw in that are helpful. I really enjoyed it.

On top of Mango as the primary lessons, I've been listening to podcasts, watching series in french, reading books, etc.

I didn't pay anything for mango, it was entirely funded by my local library so that was great.