anecdotal no ?
in all fairness i have many of the same health features you do but i smoke a lot of cannabis every day. no i am not saying it stopped covid.
i only took 2 shots at the start of vaccines and don't think i have had covid. if i did it was so mild i barely noticed. i rarely ever get sick though. never even spent a day in the hospital.
also depending on your age. i am 47. a very large portion of all covid deaths were to those over 60 years old.