NO vaccine is 100% effective. In 2019 I had the flu shot and still caught the flu. But it was a mild case, thanks to the vaccine. That was the first time that I got it since I started getting the flu vaccine. I will get it again this September.
Of Covid patients who caught it, 99.2% did NOT have the vaccine. For comparison,Birth control pills are only 99% effectve.
Bottom line..protect yourself, your family, and the country and get vaccinated if not already done so.