Neither, they're all hard especially for folks that don't know what they're doing. You can sit there and play against weak opponents live but NL Holdem is a game where even the weakest players can get lucky on you repeatedly and if you don't have sound
bankroll management principles or can't deal with tilt then it will break you.
And Holdem is also a game of many illusions where you think have an understanding of the game but in reality you don't have a clue what you're doing. Some folks can win a few tournaments or have deep runs here and there by doing silly aggressive donk plays but they just get lucky and they can't cash on a regular basis and eventually go broke.
There are easier and more reliable ways to make money in this world and sitting at home or in a casino against people who want to take your money for lots of hours with no guarantee of turning a profit is not my idea of fun.
There are folks that can do it but the secret is they have invested a lot of time (like more than what you would earning a degree at a university) and effort into it. And even then, there are numerous instances where the BEST PLAYERS IN THE WORLD HAVE GONE BROKE. Think about that, you're the best player in the ENTIRE WORLD but you can still go broke, lol.
Play it as a hobby and if you don't enjoy it then do something else. Life is too short to waste on things you don't enjoy.