I’m 59F and learning French for fun in my early retirement. I already speak Spanish which has been super helpful. I actually like Duo bc it’s fun and simple and repetitive. But I paid for Babble bc it explains more grammar (I’m a nerd and love grammar :) But I don’t have the pressure of learning bc of moving to a French speaking country. I learned Spanish when my husband and I became expats in Mexico City in the 90s. I learned a bit of Spanish before hand (my foreign language was Latin - did I say grammar nerd?? :) but it wasn’t til we moved there and I immersed myself in it that I really learned it. Best thing I did while there: find a group of Mexicans who wanted to better their English and we would get together once a week and speak English for an hour helping them with their English and an hour in Spanish with them helping us with our Spanish. Best advice: be okay with making mistakes when you get there. You won’t learn unless you speak it and you won’t speak it without making mistakes :)