For antivaxxers it's really to late.
The newer Bivalent boosters will only be available for people who've already had the initial vaccines.
Whether or not your obese or perceive yourself as perfectly healthy it was wise to get vaccinated if you are around people: (It's unlikely being a falang you'll find available original vaccines even if you chose to).
"If you haven’t been boosted in the last couple of months, this is a great opportunity to be better protected,” Dr. Murray says. “Deciding on timing has a lot to do with your own health profile as well as that of those around you. If you're with people who could become quite sick if you transmitted it to them, even if you had mild disease, that is something to consider.”
https://www.yalemedicine.org/news/omicron-booster-covid-19
Hopefully this won't be as deadly as the Delta variant.