I believe natural immunity if way more effective than the vaccines out there
And again complete miss-understanding of how a vaccine works. Vaccine activates YOUR OWN immune system so it can identify the virus when it first enters your body, therefore you are ready to fight it. Hence a vaccine is no use as a treatment, because once you already have the virus it's too late to WARN your immune system what's coming.
If you are not vaccinated, your first encounter with the virus your immune system will first investigate what is happening (taking time while the virus takes hold) and then manufacture a response (antigens). Your body then is taken by supprise by the virus.
After you are exposed to the virus or have been given a vaccine your body will produce it's own natural antigens that circle your body ready for any repeat invasion by the virus. This protection does wear off over time with some virus, like covid and the body needs to be reminded to stay vigilant, hence booster requirements. There are always times you may come in contact with small amounts of virus that also train your immune system without taking over, hence why antigen testing will pick up many people that have been exposed but never had much infection. Up until recently those old enough were still carrying antigens to the 1920s flu, not many of those still alive though. The later is how snake trainers build up resistance to snake venoms, but it takes time and repeat occurances.