Yea Forumsrothers help me out

Is this like no fap?

no.
doctors recommend ejaculating 2-3 times a week to keep your prostate clear.
no porn is because porn conditions you to be a voyeur, by you watching another dude fuck the girl you like the look of, day after day for years.
that's often why heavy porn users develop a penis fetish over time.
1. watch another man's dick
2. fap
3. pleasure of fap conditions the brain and makes the association with the dick in the video, even if you aren't focussed on it.
It is like pavlop's dog. Not complicated.

What if I have my own home made stuff, custom spank bank style?

videos of your sister undressing in the bathroom?
you should be able to use your imagination. if you can't, you will be able to after a couple of months without porn.