First of all, congrats on getting the acceptance! I'm glad that perfect interview ended up leading to an offer in the end!
At this point, a week out from that initial waitlist email (and now having just heard that I am most probably waitlisted at my final program too), I have begun searching for potential new jobs as well to try to distract me and make me feel less helpless, but a mental roadblock for me is the fact that I currently have an RA position on a study that will be in data collection for several years. So while part of me feels I shouldn't "jump ship" here and start from scratch in another RA/RC position just to reapply to programs in December, the other part feels my experience here wasn't "enough" to get in (it's not in my major area of interest, just related to a secondary interest, and I've only been involved in recruitment & data collection), and so I should join a lab/study that's smaller scale but faster-paced, where I might have more chances for a poster/pub by next cycle and for networking in my desired future field.
So at this point I'm kind of putting off that decision (and conversation with my current PIs about my opportunities here) until I get rejections from my remaining two programs, which maybe isn't the best idea... But I am keeping tabs on openings, and am telling myself I will apply if something comes up that really seems to fit my wants and needs better than my current job. So hopefully just looking for things will keep me preoccupied until I hear back with the final verdicts... Anyway, thanks for sharing how you were coping with the not knowing and how it turned out well for you! Best of luck at EMU!