Niurh friend, try your best, you are so smart that sure you will succeed.
Take it easy. No rush.
Try to speaking, maybe you are alone, but you can talk to yourself for some topics. Please speak. Nothing can instead of practice. That is not difficult. You will make a big improvement in first week, like hifi run-in.
Don't need afraid of make mistake. Everybody will make mistake. But please try to explain something by speaking. If you do, you are success.
You are a Chinese, so you can speak English slowly. And try to as simple/short as you can, sometime maybe use your hand and pen, you can do all you want let that westen guy understand your opinion.
