For me there are stressful days in the game, where I am annoyed of stupid results or that I can't find the right player in auctions.
But other days you really get the enjoyment out of the game, when beating a very strong opponent or securing a title. For me it is always still something special to win a title, because competition is always hard. It's what I was talking about some time ago when I opened the manipulation thread, that this hurts your motivation.
My motivation is to play with my friends and battling with my tough opponents trying to beat them. Of course one day I will win, another day lose. I try to keep a relaxed attitude towards the game, at the end it is also just a game and every other game I played online feels frustrating at times as well.
Overall I think TE is still a great game, even though not so good like years ago in terms of the engine especially.