How to know if everything is still working ?

Hi nofappers ?

If we dont ejaculate every now and then how will we know everything is still working ?
Morning wood and manual stimulation without porn, is a sign you can get an erection, but how about ejaculation ? amount of semen volume etc ? How do you know you produce enough semen with ejaculating ?

Blood test maybe ? Measure your testostorone level with blood test ? Then you dont have to ejaculate to know ?

BR,