Lost my goal

I feel lost lately. My goal was that I go abroad on a working holiday. I saved up money for it. My dreams came true. I've always wanted to speak English fluently and live by myself somewhere other than Japan. I hoped to go surfing there as well.. I found that its not easy to speak English fluently when I started to actually live in Australia. I'm struggling with my speaking. I'm getting to the point that I don't know why I wanted to speak English. I need my motivation.

Your English is actually very good! Only a small correction here and there. My advice is this : don't worry! Speaking is all about being understood, so if you can achieve that, you are doing well. Though it may seem differently, most people do not mind if you do not know the exact right words (what you would call "fluency"). If we can understand what you are trying to say (and here, I did), then you will be OK. Learning is a lifelong experience. With the language ability you have now, you can live anywhere in the English-speaking world. Take pride in that!