>>14281549As you near the singularity (or ehatever is at the center of a black hole), you get spaghettified: the tidal force on your body (difference between your nearest and furthest part from the center of mass of the black hole) is so great that it rips you apart and turns you into a strand of infalling matter
You won't survive this
You'll experience falling into a black hole, at such velocity that, crossing the event horizon, it will require moving at the speed of light to escape the gravity well; according to the size of the black hole, and thus the distance of the event horizon from the center, you'll experience this long before or long after your death
An external observer won't see you crossing the horizon as we don't see anything else inside; what he will see is an image of you at the instant of crossing, becoming increasingly redshifted until it fades
As for hitting the center, or singularity if the theories are correct, nobody knows, but it's certainly not a warp zone or a baby universe or any inane sci-fi fairy tale; it's just some form of compact matter