Have you ever learned a language in your 20s? If so, how good are you? How long did it take you?

I personally have tried to learn many languages in my 20s. I’ve became good at figuring out what are the shortcuts to kickstart learning. The best one I found is to learn as many words as possible + simple grammar + useful verbs. If you have the time learn hundreds per day with memory tricks. Once you know enough start trying to have conversations. Grammar is not really important in the beginning but you need to learn conjugations (if there are any) at some point early.

This is a much better approach vs trying to have convos when you know peanuts. If you’re planning to spend some weeks in a foreign country this is what I would advise to you. You are going to learn very little if you get there without having done that