Hope you get well soon. It is out there and keeps changing so it seems like just a matter of time for most of us even if careful.
We visited my Wife's family in Arizona for Christmas. A couple days after getting home my wife was not feeling well, and tested positive. I also got sick so assume I had it as well, but didn't bother to get tested, just stayed in the house as if I had it. Our symptoms were very different, I had a mild fever, and tired with a really bad headache. I actually had similar symptoms when I got vaccinated, this was just more severe. My wife got severe respiratory symptoms, a fever, headache and bad joint pain. I was back to normal within a couple of days, she no longer tests positive so they have cleared her to work but is still recovering from the effects almost three weeks later.
We have both been vaccinated, but no booster. All the adults in her family have been vaccinated, and we seem to be the only two who got sick, so either we were exposed on the drive home or the vaccination mostly did its job.
My wife has had pneumonia twice in the past year which she is still recovering from and may have made her more susceptible. 16 hours in the car seems like a good way for it to get from her to me. My younger son wasn't obviously sick, but he slept a lot in the days after the trip and isn't a complainer when he gets sick, so if he had it like I did with no visible symptoms it would be easy to miss. He had to stay out of school for an extra week anyway since someone in the house tested positive. He was tested to go back to school and it came back negative, but by that point my wife did too so it doesn't mean he didn't have it. My older son didn't go on the trip and secured himself in his room with a can of Lysol after my wife tested positive so managed to avoid getting sick.