Congratulations on passing your test. Oddly enough I found my 5th and 4th kyu tests to be a lot more stressful than my 3rd, and the potential # of techniques I needed to know was 50+ (which seemed a lot at the time).
It's always difficult to tell how you did on a test. I always feel like I didn't do as well as I should, and most people feel the need to say you did well, so that makes it hard to judge. Best thing to do is get someone to videotape it for you and look at it later (you'll still be overly critical of yourself, but you'll also see the good things you did