If you want to achieve higher ranks via the merit system, you need to stop thinking in this manner. In want ever your do, your mindset matters alot. Here's a motivation for you from my self-made full member, celebration post;

It might take sometime as an average post to receive the required merits needed to rank up but if you keep on posting with the intention of helping others as each post is written with quality, you will surely achieve those set goals.

DON'T GIVE UP.