For Males who have done Kegels to Prolong and last, how do you actually do it? And what is multi orgasmic?

I know this has been asked multiple times before on reddit and I’m pretty certain ya’ll are tired of this so here are my questions I 21 Male have been doing Kegels 10 seconds 10 reps, for 2 weeks and I do more but on average those are what I do.

1. What exactly is the “push” part to prolong the ejaculation, this I generally don’t understand
2. when I tried contracting the muscles (kegels) while masturbating, I only came a little and its almost like the semen never came out?
3. Do you guys actually prolong the orgasm because of the kegels? because when I tried it my penis is still very sensitive which still made me orgasm.