This is something I have also had a hard time adjusting too, and to think that someone else is going through the same situation is kinda funny (sry to hear though).
When I find myself in situations like this, that's when I really don't care more about my cards, as apposed to the image that I "Think", I have at the table at that time.
Look at it like this, you stated when your on a bad streak, or are card dead you tighten up, well that's not really a bad thing, that's when you use your image at the tables to pull of bluffs, and still alot of pots, some small, others large, regardless it all depends on 2 things in the end, and that is, A) Your image at the table, are you playing like a rock? And the 2nd thing is, are the players your playing against smart enough, to forget about there cards, and actually think about yours? If you can say yes to both of these things, then I'd say your in for alot of pot stealing, bsing, and keeping afloat.
Gl which ever way you decide to go