You probably do not understand this, but it is very likely that the vaccine still worked for you. Vaccines do two things. They reduce one's chances of getting the disease that they are designed to control. And second, if one does get it the symptoms tend to be much milder. Do you need some studies that show that this happened with covid? I can provide them.
I have had covid twice. The first time was about a month before the vaccine was available. It was one of the worst times that i have been ill in my life. I survived. When the vaccine was available I took it, the more protection the better. But I still got it a second time. The second time around was almost nothing compared to the first. The vaccine and my acquired natural immunity were enough to stave off the worst of symptoms.
Whatever works for you. I got three shots. I don't know why you're saying that I probably don't understand this, but I do understand that the SHOTS MAY HAVE (big "may have" there) kept my symptoms from being as severe. But many factors could have kept my symptoms from being as severe. So I don't know. Would I take the shots again? Probably but maybe not, who knows. The shots have not been fully researched and that's an issue to me, to stick something that hasn't been fully researched into my body.
TRUE STORY TIME: Long ago, in a galaxy far away, aka Thanksgiving 2021, about 15 of my family members (including about five teens) got together for Thanksgiving. It rained all week long so we were all crammed up together in one house and mostly in one room. About a third had had shots. About a third were elderly. About a third had had no shots. Get this - someone came down with COVID. He passed it on to several other people. Not me though, and also, none of the elderly people. He also didn't give it to his two daughters, who shared not only a room with him, but also rode home 12 hours, from Louisiana to Kentucky, in the same vehicle. His daughters were older teens at the time, and he was in his fifties. I don't know if he had been vaccinated or not. He probably had but he was still pretty sickish, with a low grade fever, for a couple of days. I don't know if his daughters had had any shots. Anyway, when he got home, he tested positive for COVID. Ironic but he actually felt fine by then. No lasting effects, thank goodness.
My other cousin (also in his fifties) had not had any of the shots. He also got it but he wasn't incapacitated by it ever and didn't develop symptoms he told anyone about till after dinner. He sat right next to me, super close, all during the dinner, by the way. We even exchanged drink glasses. We may have even eaten from each other's plates, I don't recall, but he is one of my very favorite cousins so we were all up in each other's faces for days. In fact, before dinner, we had played cards and he had sat next to me for hours.
One of my elderly aunts had had no shots. She didn't get it. Most people didn't get it in fact, If I did, I was totally asymptomatic, but I doubt seriously that I even got it. The other two people who got it were supposedly vaccinated as well as me. No one was all that sick with it, thank goodness, and certainly no one had to be hospitalized.
Oh, one more thing I just remembered - we all thought that the people who got the sickest (for about a day, maybe two days) had gotten a simple cold from one of the teens who did have a cold. She had tested, and tested negative for COVID. So we just thought of course that the people who got it caught a cold from her. It was the same symptoms but when they got home, they tested and it was positive for COVID.
That was interesting to me because when I came down with what I thought was allergies to cedar pollen a few weeks ago, I tested for COVID and it was negative - till I ran a fever the next day. I tested positive for the three days I ran a low fever. After that, I tested negative. By the way, these were tests I actually bought when I was traveling. They hadn't expired almost immediately, unlike some of the others.
Anyway, so at least five of my immediate family members didn't get the shots, including an elderly aunt, and by "elderly," I mean nearly 80 years old so pretty darn elderly. Only one of those people got COVID, though several who HAD been vaccinated also got it. No one was particularly sick and no one had to go to the hospital and no one had any long term effects that we know of.