May I ask when you got your 3 vaccines
@Mandala? I'm guessing in the beginning, and not any recent ones? The most recent one's formula (Sept 2023) was updated for what is currently going around and no longer contains the formula for the original strain, as that wouldn't be effective for what's currently going around. Hence the updated formula.
And they are effective, but for what they were designed to do.
They don't prevent infection which a lot of people think mistakenly. Below is one such statement of what they do. Bolding by me.
COVID-19 vaccines are safe and effective at reducing the risk of severe infections, being hospitalized, and dying from COVID-19.
And from the CDC:
CDC data have demonstrated that original COVID-19 vaccines can help protect against being put on a ventilator and/or death for up to 2 years and bivalent COVID-19 vaccines also provide sustained protection against critical illness and death. Even with this sustained protection it is important that you get your updated COVID-19 vaccine since it can provide additional protection. Additional vaccine effectiveness data against emergency department/urgent care visits and hospitalizations will be shared as they become available.
Vaccination remains the best protection against COVID-19-related hospitalization and death. Vaccination also reduces your chance of suffering the effects of Long COVID, which can develop during or following acute infection and last for an extended duration.
COVID-19 Vaccine Effectiveness - What's New | CDC
Also note that since Covid is mutating at what feels like breakneck speed, today's virus isn't the same as the initital virus, which won't be the same as mutated Covid down the road. Due to that it's a good idea to stay up to date on vaccines IMO.
As for my feelings about it.. I HATE vaccines, or any meds, actually. But, I've been current on every Covid vaccine as I really don't want to deal with a ventilator, or a hospital stay, death, or brain fog as I really need my faculties about me.