Knowing how to get merit is not enough to gain merit, you need to help your self to improve your post quality to earn more merit. Earning merit is takes a time because you need to gather more good information that can help many people here in the forum and post it in precise English to encourage more people to read your post and give some merit to it.

I`m also trying my best to earn merit. The other way to learn more how to earn merit is look the profile of recognize people who earn merit regularly and  make them as good model in the way of how they make a post here in the forum.