Way harder today. In 2007, many of us made a living just parking domains, without having to sell any domains. Type-In traffic was much higher, and Yahoo was still a great feed in 2007. IMO Google is the #1 reason why it's harder today, they have a monopoly on search, which is bad for everybody. 2015 was a great year when the Chinese entered if you had short names to sell, but it's been down hill since, not sure if the chinese are coming back like 2015.
The GTLD's have poisoned the industry as well. In about 3 years they will buried in the grave, maybe 1 or 2 will survive. Convincing end-users is tougher today than it was in 2007. Many think FB, or other social media accounts is all they need. I don't even try to convince end-users, waste of time, either they get it or they don't, the value of a domain name.
See some good future ahead, especially in growing spanish .com market, and india as well. Just got to follow future trends and be in the best position to capture on those trends to make yourself successful! Good luck to everybody!