We"ve all been there - I had the "I"m giving up" episode last weekend.
All the above advice is great - play more hands, be more conservative on bankroll, play fewer hands, play different games (my favourite), read some strategy (also my favourite, find leaks, reinforce positive play)...
But the PMA is also a great one. Ultimately we will all suffer these periods, and those who play through it and come out the other side will be the survivors. Also, when it happens again, you"ll know you came through it before. It"s not our successes which truly define us, but how we handle our setbacks...
Ultimately you"ve answered your own question - you love the game. Now play it for the love of it and let the money follow!