Sounds exactly like my problems last week.
I was doing the same.
Getting coolered over and over, and then making it worse by spewing.
I wasnt making laydowns when i knew i was beat and i was pressing too hard. Everytime i got a decent hand i was over playing it horribly and trying to out play my opponents.
Sklansky says poker is a game of mistakes.
Make fewer than your opponents and you will prosper.
Also poker takes a lot of patience/confidence and self controll.
You can have all the knowledge/skills in the world,
but without great patience/confidence and self controll, its all useless.
I also dropped down to 2NL when i was running/playing bad to build my confidence and minimize my losses. It worked well for me.
Remember, after every downswing comes an upswing...lol
Good luck to you Robb.