Merit is given for useful, helpful information. This being said, as new user, if you are not knowledgeable in the topics you are visiting and you are learning now, it's absolutely natural that the merit eludes you. But merit should not be the purpose of being here, right? So keep learning and the day will come you will become really helpful. And then, with the right amount of activity, merit will be not an issue.

TL;DR: For now you need patience and more learning. Merit will come later.