SpanishNative speaker !
As a consequence of having studied English during many years at school, in an institute and by myself, in 2005 I passed the First Certificate in English examination (this is level B2) from Cambridge ESOL.
Then in 2014 got the C1 certificate, also from a Cambridge ESOL.
Finally, in 2015 I passed the Certificate of Proficiency in English, getting the CEFR C2 certificate (maximum level).
I have studied for 8 years, passing 16 courses, Mandarin Chinese language. This is, out of all Chinese dialects, the official and most used one. I plan to study further this language, to improve my skills.