Learning a new language is definitely a tough job. It's really a bit difficult for us to go outside of our comfortzone. For me, I am practicing English here. While i speak something in English, I face several problem. For instance
1. My mind goes blank. I can't remember anything.
2. I can't find out the appropriate word for sentences.
3. Interestingly, I stammer at that time.
4. And the last and final stage is quite pathetic. Going through these, I become depressed and frustrated.
And i decide to stop learning English.
So for me, learning a new language is challenging. But still we have to stick to this to get better outcome.