To metza:
Originally posted by metza
Goddamn boots keep taking all my money!!!
I found the culprit:
Spoiler

To the OP:
You are quite correct: You need to work on your mental game.
For that I suggest The Mental Game of Poker by Jared Tendler.
To get an idea about what the book is all about, start with this thread:
+++Q&A with Jared Tendler!!+++
Also, if you can play for an entire year "playing really focused" and still be losing so badly, it is possible that your poker game needs work also.
Others have suggest Erik Stenqvist's thread:
[EmbraceTilt] Erik Stenqvist: Tilt, A-Game, Mindset, and Lifecoaching ~ Q&A
You might have a look there.
Whatever you do, it won't be easy.
It will take work -- time and effort.
It will take attitude -- you must be willing to admit that you're tilting and/or playing badly, and you must be willing to change. None of those are particularly easy.
In order to give yourself some motivation, why not start a blog on your progress?
All the best,
--VS