Mmm, my first language is Cantonese. I'm okay in it, like 70% fluent. I can understand and speak most household conversation, but have trouble with proper grammar and listening to the Cantonese news. I can't read or write Chinese other than the beginner's stuff I learned in class.
English is my second language. I took ESL since I was a kid in school. I'm fluent now and majored in English Literature in university.
French is my third language. Blame the Canadian school system for forcing us all to learn even a bit of french starting in grade 4. I took it up to grade 10 in high school since it was the only other language my school offered.
Japanese is my fourth language. I switched from French to Japanese in high school as soon as I could escape the endless French classes. (My second school only offered French and Japanese as second languages) I ended up minoring in Japanese in university, so I can read pretty much any Japanese manga/novel/newspaper/etc. and understand/speak/write without much problem.