If you have not tested old projects before, I will advise you to test the old projects to see what is making people to prefer old projects than the new project because people have achieved many reward from the old projects but the new projects, they don't know what it will bring out in the future.
Old projects are most trustworthy because they have been around for quite some time and investors know that they are not going anywhere this soon even though tragic things happen sometimes, most of the time, old projects face no issues. On the other hand, new projects are risky because they can be scams, might rug pull, and cause losses to investors, and the teams might even abandon the projects if they can't keep the developments going for any reason which ultimately becomes a problem for investors.
This is the reason why old investors prefer old cryptocurrencies they know if they invest in new coins or tokens, they are going to risk their capital. Everyone knows that new cryptocurrencies have the potential to provide higher profits, but what's the point if you can also lose your invested capital? The safety and security of your funds should be the priority.