I want to know how to find airdrop or ICO project...how to check scam or real and how much profit airdrop can make...and if u have experience about airdrop or ico things can u share this exp in here:

I like to warn you not to waste your time on any ICO or airdrops or even on bounty hunting.
Because you got only 1% chances to get rewarded for the efforts and time that you are providing to them.
I had spent years on different bounty hunting and all such coins and tokens are not being traded on any exchange. I still hold the tons of shitcoins and tokens.
Always work for definite rewards which can be paid in BTC or fiats or in any reputed coin and if you are getting paid in altcoins then immediately convert them into bitcoin and hold it for years then your time and efforts will increase ten fold for every four years.
That's the sad truth, the days for ICO are already over, they were successful last 2017 to 2018 but everything went soar when the market undergo into a long correction where only a few altcoins survived. Better follow the trend now as they are mostly bringing profits to investors, don't go with the old platform as it will only result in a loss.
You are right, what should be learned is that you have to keep up with trends, in 2017 it was the Airdrops, in 2021 it was the NFT, I think that now what will rule will be the metaverses, that is, games in metaverses , and this can lead to having Airdrops and a series of things that can combine to make it much more explosive, of course starting from the point of view that the NFTs are successful when they have improved their internal economy 100%, otherwise I think not.