The crucial part is finding the opportunity before most people, it's very hard and unlikely, you either need insider information, getting lucky, or keeping an eye on dozens of currencies
Insider information depends on how deep you can go. I was in a project the entire time, but just the community level. All the announcements and information were legit and interesting. But the fact was that they were all planned; they were all misleading. It turned out at the end. It was a scam project.