It's really not a good idea to get in to the "moneymaking" phase immediately if you haven't studied enough.

It's up to you. It's either their manager hasn't checked your reply yet, or the campaign might be full, or maybe you're simply just not qualified to join. Campaign manager's check your post history to see if you're qualified or not. I just checked your post history just now, and guess what? You're not qualified. How ironic that you have the word "crypto" in your username but 90%-95% of your posts aren't even about crypto.