Its fine, keep trying new move. Just dont give up when completing other levels. Maybe testing with small trick level will improve urself too
Regardless of the purpose of just having fun or selling. I think the trick is part of the secret. New members come and go. Maybe you have mastered various tricks and techniques or maybe it's boring. that to me is not a problem because it might have a reason for each. There are lots of tutorials to reveal the tricks of this game, on YouTube for example.
The game lasts a long time and is still being played because there are interesting things there. As long as we still want to share, I think everyone will know how to play this game. As long as we are reluctant to share, new members come and go.