Expect omicron to hit hard and fast; much faster than delta which was much faster than early in the pandemic.
If you are vaccinated and boosted, omicron will be hard to avoid but hopefully not terrible for you as an individual: the vaccines should, with a bit of luck, mean this is more like a flu than something you go to the hospital for. With a bit more luck, you won't get long-haul. I am still considering traveling.