I read a post about English writing

After I read the post about common mistakes for writing . I thought I always make the same mistake again and again. Sometime I post some article on my blog wtih wrong English grammer as well as use the wrong English words.In addition,I often put "and"and"but" in the beginning of the sentence. However, I believe that if I keep practicing English writing, my English ability will be improved. Well goes the saying,"Those who sow in tear, will reap with sounds of joy."