Quality posting and creating of new interesting threads may help you to get those 10 Merits in a moment. 10 is actually not such big challenge, there are a lot of members who's target are much higher than yours, mine, for example is 145 Merits and it is constantly not going haha for now 
Actually even how good quality of post you have if you are not famous or knowing by the other people in bitcointalk community you can't get merits. If you notice all of us have a point in terms explaining our side. But almost all of them can't appreciate our post. In Jr. Member how hard to earn 10 merits compared to Full Member and other higher ranks. I was already Full member but due to merit I was not ranked up but it's okay maybe I was not enough knowledge to ranked up.