Fisetin for Immune System

I started taking a low dose of Fisetin a little over a year ago.  I take about 20 supplements.  In the past year I have not been sick once and I have been around many sick people.  There were 2 days where my body fought something off. These days were not consecutive. The first day was back in November 2019.  I felt worn down like I was coming down with something and I could feel my body fighting it off. The next day I was fine.  The second day was January 2020.  I started to feel sick I had a fever of 102. I took 2 additional fisetin capsules (100 mg each) and another zinc capsule right away.  This was around 2pm. I had the fever from around 2pm to whenever I fell asleep, which was about 12am.  I woke up the next day perfectly fine.  I had 2 other people in my household that were sick and had been sick for about a week.  I am convinced I'm on to something here that will work to combat the common cold and flu. The year before I started taking Fisetin daily I was sick for at least 10-14 days.  Any other people have experiences like mine?