OK, you make some fair points.
Luck is the same for everyone long term. What is left is the skill advantage. If you have one, over the long term you will win — maybe.
Have a look at the poker variance calculator
When you first open the link, you see 1000 simulations of 100,000 hands each, for a player with a presumed winrate of 2.5 big blinds per 100 hands.
Pay close attention to the best and worst runs. This is why we at PokerStrategy.com recommend conservative bankroll management
Now change the parameters to 1,000,000 hands — now only one of the 20 iterations is in losing territory — and not by much. At 10 million even the worst run is solidly profitable.
Originally posted by Gauer
Funnily enough, I did way better in tourneys than cash, at least I could finish 1st in some, and at the top (2nd - 5th) at least in half of them.
My experience also. In fact, I'm in lifetime profit largely because of some very deep runs in large tournaments.
If you enjoy the game no problem, but if it is becoming tedious — or worse — take a break