The composition and layout of calligraphy is a very profound knowledge, and it is impossible to make it clear at once. You should know more about ancient calligraphy works, and know the big, small, long, short, overlapping, product, combination, weight, deviation and inclination. The same word appears in different positions and needs to be changed. For example, Wang Xizhi's famous Preface to the Lanting Pavilion, later generations said "Zhi".
There seems to be no quick solution. You can only see more, practice more and learn more.