Russian and English
My mother tongue is Russian. English is my second language but I still can't say that I can speak it fluently. There are still loads of things to learn. I wish I could say one say: 'Yes, I've done it'. I learnt German some four years ago, but I've already forgotten most of it, as I haven't done it since I began learning English. I had to sacrifice German for English, as I found it very hard to study two languages at the same time. Then I got into English and I still can't stop. I'll probably start learning another language in about a couple of years when (I hope) I've acquired an excellent command of English
Learning foreign langauges is so interesting, isn't it? Many learn them as part of educaton, though.