Hey Lingling,
Stop apologizing for your effort to learn and express yourself in English. If we have trouble understanding what you are saying, we'll let you know.
You're doing great so far. I haven't had any trouble with knowing what you were saying.
I see an occasional omitted word in sentence structure that would give more clarity, but there is definitely no need to apologize for the progress you are making.
One of our members has a high level of expertise when it comes to the English language. She's been posting a series of helpful tips for us in the English Language forum. You might find them helpful in your journey to learn English. Look for Fine-Tuning topics by Roberta.
English Language Forum