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Do not get depressed and don’t give up easily, you can still make it here if you are fully ready as you said. Try to be going through most discussions because they are always good; you will learn from people comments. You can also ask questions when the need arises and if you do so, make sure you go through the comments and learn from them.
The best recommendation now is to be dedicated, and use your time well to navigate and learn in the forum, don’t be in hurry to get merit because once you have learned and started given quality contributions in the forum, you will earn merits.
I don't know why some beginners find forum to be a burden that they find difficult to overcome - when in fact a forum is just a discussion forum where they can comment on other users' posts and argue just like they would respond to discussions with their peers in the real world.
All they need is knowledge of what is being discussed – while they don't need to force themselves to post a lot of topics they don't understand. Of course - learn and learn is good advice for any beginner, but don't make the forum a burden.