Trading a new project listing on top exchange usually leave many traders at loss especially those that doesn't know the do's' and dont's' of trading a new listing.
Don''t trade if you don't have basements for your trading calculations. Basements can be taken from crowdsale price or past resistance / support. With new listed coins, you don't have past resistance or support. If you don't have details from crowdsale price ie. your trade is gambling at beginning.
Many times a new project listed will Pump very high and it will seem like it will keep going up and then suddenly it will start dumping really hard while many traders will have no choice than to sell at loss.
Not all 100% of them will be pumped and to be safe, I don't bet at the beginning and join first FOMO wave.
I think one of the things to do to trade a new listed project is to wait till when the price is stable. Most times price usually pump and then dump then it will pick up later due to traffic trading and then later dump. All this usually happen between one to tow days.
After 1 or 2 days, you can have very temporary resistance and support to trade but it is still unsafe. If you implied about period for more stable price, it can take a few weeks. You can take a look at very first generation of DeFi tokens, SUSHI, Curve, etc.. Safety is the first priority for your trading decisions, not profit.
The same goes for airdrops, I will wait price actions and market reactions for my trades. I don't bet with forks, airdrops and hope that they will give me profits.