I wonder if this feels different if you rarely use NHS facilities.
I've worked full time since I was 21, and have always paid tax and NI. In that time I have:
Had depression that was treated for two years.
Had two children, one of whom had to be kept in hospital, with me, for the first 4 days of his life.
He was seeing the doctor once every couple of weeks for a few months due to complications with ear infections.
Recently he's been referred to have an ASD assessment. Yes, the wait time for this is annoyingly long, but he's already had a number of people see him for an hour at a time, they've seen me for several hours each, and next is a full panel of people.
With DD, she was at the doctors regularly from 6 months to 10 months. At 10 months she got sepsis and was in emergency care, blue-lighted to hospital, the saved her life. Twice. We stayed in the children's hospital.
She was back at the doctors weekly until she was 14 months when she was rushed in for an emergency operation. Again, we stayed at the children's hospital for a while after. Nurses, doctors, consultants, anaesthetists, surgeons all keeping her alive.
On top of that, I've had free contraception, I've been long term ill (still working) for about 6 years, and two years ago that situation got dangerous. I've been able to see the same GP throughout for the past 6 years. When it became necessary, I was treated in an emergency, and moved to the care of a consultant. I still see him every couple of months. Aside from that I've had 6 months worth of intense therapy.
I've got an NHS prepayment certificate, which means I pay £10.10 per month, and I get the three or four prescriptions a month for that. That is the ONLY time I've been asked to put my hand in my pocket there and then. All that I've had, the several times they saved my daughter's life and the time they saved mine - that was taken from me slowly via NI.
I've been paying it for 20 years, and I personally think I've had my money's worth. So I guess that makes the NHS better for me than it is for you. I needed it; it was there, and I'm not dead.