[throw_this_one]

I'm like near B2 in spanish, B1 portuguese, was about B2 in german awhile ago but I don't practice it anymore (not that useful).

Learned all in the past few years.

Go for Pimsleur to start, plus a little bit of Duolingo. Then start going to language meetups (this is the most important after you're approaching B1), reading up about grammar a bit, using Italki for online practice, and think about traveling to the country.

You want a balance of natural speaking ability, but also want to understand the general gist and way the language works so you can reason things easily if needed to - to fill in any gaps.