As a nurse and what you've seen are you convinced boosters help? Can still get it but symptoms lessened?

I don't think one should view the vaccines as a guarantee against getting Covid. They're really more about decreasing the severity of illness, which can prevent hospitalizations and death. I've had Covid twice - once before vaccines came out (some long covid effects for a year after) and again a year ago. I'd had vaccines and boosters. I was sicker the second time, but just for a week and no long covid effects. Glad I'd had boosters, as I'd tested positive for MAC a few months prior, and had also been treated previously for aspergillos.