If you're like me (and it sounds like you are) you're doing some or all of the following:

Calling/raising in marginal situations to see how people react;
Playing too many good-but-not-great hands which you end up having to fold;
Playing low suited connectors etc. before you've got enough reads on your opponents to be confident with them;
Folding more than you would do normally because of uncertainty as to how the table is playing;
Limping in with your first blind, getting second pair and ending up $5 down cos you didn't just quit when you should have.

Any of that seem accurate?