How Our Classmates Improved

I read others' writings at the beginning through the ending in order to look into their progress. Some people improved their writing skill and grammar, but the other did not. However, I could not look how our classmates improved. Actually, they improved a little than the beginning as I could not find their progress. Maybe, the reason might be my English is not good. I think my English is terrible, so I may not find others' development. I always learn to read others' writing. To be honestly, I feel my complex for others. I do not know English words than others, but my writing also is left behind as others' writing. Therefore, not only will I improve my English as others but that also my purpose.