Sigh

I think I've become a little too self confident these past few days. It worries me. I love the highs but I know I'll get down after it and I don't want to feel that way.
We had a rep in today to talk to us about blood bottles. Very young, smart, suit, cool and attractive. I flirted the whole session and got him flustered. He told us he had a satellite Navigation system which I asked if I could see.
Double entendre or what?
Now I'm home, I'm feeling a bit insecure again and fretting about stuff and think I should really just stay in and not go out opening up to people and causing havoc.
I don't know who the real me is anymore.