In my case, that is English. I have nothing to be proud of my English. I know that my pronunciation is not yet good. But anyway, I can use English pretty well. Sometime I'm asked: ‘how did you learn English' or ‘why don't you teach English'
I've learned English mostly online and by myself more than any school and English center. 2008, when I was 21 years old, the dormitory I stayed started to have internet. I started to find websites make friends with foreigners. At that time, I spent time at interpals.net the most. I found some people to exchange letters and postcards. I also joined a free online course.
Those experiences make me able to read and write, but I wasn't able to speak and listen.
End of 2010, I started to work in a company, the project which I was a part of requires to use English. I also joined business trips which everyone in the team can speak English and I was like “deaf”. I was really mad at myself and paid all effort to learn English. I bought a microphone and started to find people to chat voice with, at that time via sharedtalk or paltalk.
The time I need to some house chores which I can't be with the computer, I usually listened to something, such as Effortless English of AJ Hoge.
I attended an IELTS course of ENCI English around 20 sessions, each session is 2 hours. The rest I studied by myself at home. Beside, I joined a course named ASK of E-town. The way they organized the class is lively and funny, suitable for beginners.
I also tried to find foreingers to speak in person with. Walking around Hoan Kiem lake in Hanoi wasn't a good solution, I was too shy to approach anyone. Finding people via tnhvietnam.xemzi.com or expat.com (at that time was expat-blog.com) were much better. I even played badminton with some people and were invited to their house and they cooked spaghetti for me.
Oct 2012 I went to the Philippines and at that time I found myself already be able to speak English.
With me, English isn't only a new language, it brought to me new world. Without speaking English, I wasn't able to learn and experience different things and about different people from all over the world. I wasn't able to expand my mind and my perspectives.
How about you?