If you are being monitored properly by an RE or well trained OBGYN then you should not have to worry about high order multiples. An RE aims to get you pregnant and have you deliver with as little risk as possible so they are very serious about avoiding multiples if possible.
I never took Clomid, so I can't speak to being a raging crazy lady but I can tell you that I have done many cycles of injectable meds and have not been a crazy lady, so don't stress too much about that. Take it one day at a time.
Have you had an HSG? Taking Clomid without an HSG can be a bad idea because if your tubes are blocked you will have no luck with Clomid. Also, there are many girls on the Trouble Trying to Conceive board (as well as here) that have taken or are taking Clomid, so you might check in there.