Hi,
sorry I can't type Chinese, so I can only answer you in English.
Learning English could be very easy and fun. However, one possible factor that you think it is difficult, could be of psychological factor, rather than the actual skills and techniques of English grammar.
So, one thing you might need to un-do is 'to get rid of your fear' at first. Try to be more curious, and see if you like it more.
Another point is that, 'Be brave in making mistakes'
We can learn well when we find our mistakes.
Ask yourself, what is the worst case scenario of making mistakes? and can you still live by the worst of it?