I am really pleased to learn about your problems that you are so serious about you studies. Such marks are not bad in monthly tests but since you are highly interested to be included in the A-1 category that is why you are anxious to increase your score in tests. It is necessary to get higher marks to attend the classes regularly and listen carefully what your teacher teaches in the class because many questions are taken from their lectures they deliver in the class. On the other hand, if you work hard throughout your study session examination before test dates, you will surely secure good marks.