I'm sorry you're in this awful situation youcantchoosethem and I hope your symptoms remain mild and you make a swift and full recovery.
But I think the reason that most people still 'don't really get it' is because most people haven't so far actually got it (covid, that is). And, if the vaccines are rolled out soon, most people won't get it.
Think of Charles - did Camilla get it? No. Think of William - did Kate get it, or his children? No. My son-in-law caught it recently. Did my daughter and their two children catch it? Did me and my husband catch it, despite being in contact with my son-in-law when he was probably at his most contagious? No, we didn't. I don't know how or why none of us did, but we didn't.
My daughter put it into context. She reminded me of the time she and her daughter lived with us before she got married. She had the flu, but though I looked after her and her daughter, I didn't catch it. Nor did my husband. However, we have both had the flu at other random times in our lives.
I would love it if 'the science' was able to explain why some people are more susceptible to catching covid than others.