any vaccine that runs out in ten weeks.
Probably a waste of time posting this for you because you only believe what some numpty says on YT, but the booster does not run out as you put it after 10 weeks. The effectiveness of the vaccine reduces by between 15 and 25% after 10 weeks, and by effectiveness they are talking about catching it and having mild symptoms. This (as I understand it) is the protection provided by antibodies and its these that have been reduced after 10 weeks. The system that stops you getting seriously ill and ending up in hospital is (again as I understand it) your Tcellls. This part of your immune system will last far longer than 10 weeks possibly for years and thats what really matters.
Regarding you not having had the virus yet, well that could be down to dumb luck or on the other had you may well have already had it but had no symptoms. The chances are over the next month or so you, and virtually everyone in the UK is going to be exposed to Omicron.
Unvaccinated people are about 11% less likely to end up in hospital if they catch Omicron as compared to Delta, no one likes taking these vaccines, but I would rather face catching the virus having been vaccinated than unvaxxed.
My 13 year old grandson lives with my wife and I, he has had Delta twice in the last few months, once extremely mild no symptoms and second time a much stronger infection coughed almost none stop for a couple of days. I'm in my 60s wife in her 50s neither of us caught the virus. Both of us are double vaxxed and boosted, although we will never know, I suspect the vaccines help prevent either or both of us from being infected too.