Lacey, did you break a mirror recently (just kidding). First thing to do is call a qualified electricion, and tell him the story to lead him on the right path. Now a question, is the circuit breaker or the GFCI outlet anywhere near the plumbing work that this handyman did? Finally, the leaky shower should be easy to fix with some new washers. I'm sure some of the others here will have some other good advice, so check back, and if you can provide us some more details. Good luck!