I can't suggest courses, but I learned two languages on my own and only then found courses for foreigners in another country that are conducted in the national language and English. There it's easier to get into the language field and learn the language. First I took lessons from tutors, and then I
took a foreign language dictionary to learn some terminology and at least some words. At the same time I used them when I came to Spain. It's such a beautiful language, even though everyone there has a lisp, as I thought. But it's so good to listen to them and understand them. I want to learn Finnish, too.