The feces that best produce fertilizer are those of herbivorous animals. Human feces, in addition to being very smelly (due to our type of diet), have less nitrogen and phosphorus than animal feces. So I recommend you use chicken manure in your garden.

but I only eat what I produce myself... I do not take any medicine or chemicals.

DarthCoin

Human feces and urine are contaminated with chemicals present in medicines such as contraceptives, and metals. Therefore, the use of this material as fertilizer would have restrictions for vegetable cultivation.