[SellingtheDrama]

Take a break - don't force yourself to play if you don't want to (if you log on expecting to lose, you really don't want to play).

When you start thinking about wanting to play again and looking forward to it, then do so.

I'd also agree with the above - spend time with your pokertracker database. Identify patterns in your losses (they are there) - and then adjust your play to reflect whatever changes the numbers come up with.

If you are playing a ton of tables at a time, cutting back there is also an option - spend the mental energy focusing on the games and your decision making by making fewer decisions better.