If you want to increase your merit, you better start and make sure that you will be able to construct quality posts that are definitely helpful not just spam posts. You can read more information about the Merit and sMerit in the "META" section of this forum.

It might be hard to earn merits not Totally because of your capacity to construct quality post or capacity to research and contribute knowledge in the forum, but possibly because of too many spam posts to a certain topic making your own post overlapped by other member so your post gets overlooked. But there are some members here who provide service to review post if it deserves a merit. If you believe that you have made a post that is probably helpful and deserves merit then you can try them to check out if they will accept it or not.

Also beware of merit trading because it is prohibited and you can get punished if you get caught by somebody.