I have being trying all possible best to make it work on having just a merit but it seems everything not working and my account is more than 5months old.
Please what other methods can I use to achieve this because I'm about to give up?
There's no method in getting merits here. I suggest not to try to hard otherwise you will just post garbage or you might force yourself to plagiarize for the sake of having that 1 merit. Just be yourself and comments on topic that you are familiar with. You can also do some research first before posting but don't copy and paste. Goodluck.