Well I was going to suggest maybe studying and reading a bit more, but if you know you are losing due to bad play, sounds like you may know what you are doing wrong.
I do think it is a good idea to post hand histories here, these people are not really your opponents when you are playing on the tables (for real not in PO games) and can probably help you out.
I do find a break helps when I am making bad decisions and can't seem to stop.