my five year old (march born) is really struggling with his writing. im trying not to compare but i cant help feeling hes starting to lag behind. his letters are really badly formed, big and often un recognisable. he is really reluctant to practice his letters and hes shattered most evenings still so im reluctant to push him.... YET i really dont want him falling further behind :( ohhhhh.. what do i do.... how do i tell if its really a cause for concern or something that will improve with time ?