Sorry, but despite OP's doctor's opinion, we got all our COVID vaccines and don't regret it. They've been shown to help in the degree of severity if you DO catch COVID, and as an aging senior in a family with a couple of kids who weren't able to get vaxxed due to the delayed rollout in children's vaccines, I'd rather err on the side of caution for their sakes than risk infecting others, especially as the variants are becoming increasingly contagious.
Got the flu vaccine as usual but did catch a mild but lingering case of it on Xmas eve, of all times! Fatigue and an annoying case of laryngitis for a few weeks, but was able to manage.
I remember getting the flu when I was in my 30's and unvaxxed. Totally wiped me out for a full week, plus it turned into walking pneumonia, which was incredibly painful. I have asthma so am prone to respiratory problems.
I believe there are something like 2,000 different flu viruses. Scientists try to ID the 4 most likely variants that will occur each year, although getting the vaccine will help ease the severity of an influenza illness no matter what variant you come down with.
So getting the shot is not a guarantee of never getting the flu, but at the very least helps boost your immune system overall.