Many people are able to earn money from airdrops, others are not very luck or lack of experience. I believe that choosing airdrop is very important. I have participated in a group recently which relates to airdrop from any blockchain and their successful rate is about 15%. And with just 15% of correct airdrop, they have earned a really really big amount of money
DO not give up. Just spend more of your time to seek reliable projects
To be honest, it would be nice to see proofs of your achievements, because here on the forum they don't like to take their word for it, and why would you put someone in an awkward position and make you take their word for it. So personally, I very much doubt that AirDrop made so much money. And what does a lot mean? You have not announced a specific amount. Personally, I have participated in several AirDrop this year but have not received any profit from any of them so far.