This describes me at FOSDEM: too many parellel tracks, a headache coming up from keeping attention to talks and schedule, running around feeling FOMO wherever I go.
But then I let go, had a coffee, had some beers with peers. No more headache + increased happiness.
Breakouts at a conference mostly don't matter unless it's something you're especially interested in or know the speaker. At FOSDEM they're recorded anyway--not that you'll get around to watching the recordings.
Speaking of conferences, this is one thing I loved about the Monitorama conference in Portland. It has a single track, so everyone attending the conference goes to all the same talks, which means you now have something in common with everybody in the hallway track and post-conference events to talk about.
("Loved" because I haven't been in years -- the conference is, AFAIK, still going strong.)
But then I let go, had a coffee, had some beers with peers. No more headache + increased happiness.
Life lesson learned.