Okay I'm confused about PC returning to PC exercising

Okay, I haven’t done PC-exercising in awhile but now I’m confused. When I kegel I can kegel in multiple spots. Does this effect anything? By my anus and the base, middle and near the head of my penis. Is there one I should focus on?

Your doing fine. When you are fully erect bob your penis up and down. This works the BC muscle more.

Is there a specific spot I should focus on to control ejaculation?

Yes different pelvic floor muscles are responsible for different things. For instance, strengthening the BC will enable you to "clamp off" ejaculation (and improve ejaculatory control in general), whereas strengthening the IC will have a greater impact on your EQ. The PC wraps the anus and, to my knowledge, doesn’t have much importance for the male kegel (as opposed to the female kegel, where it is the focus of the exercise). I think as a general rule of thumb, however, you should just try to flex as many of these muscles as possible to get the maximum benefit.

If you search there is a lot of good information here on Thunder’s
BC: Locating the bc muscle
IC: Kegel - the secret revealed

Good luck mate!

Definitely stay away from the PC when kegeling. I think strengthening the PC can put pressure on the male prostate and actually worsen premature ejaculation. So try not to flex your anus; focus on the base of the shaft and just underneath it. Clamping down the BC is what your looking for to stop ejaculation in its tracks. Consider edging/ballooning to to gain better control of ejaculation as well.

This is a long read, but IMO if you want to learn to control your ejaculation there is nothing better out there!
Dick Control: A Primer