It only seen to distant observer (you may even safely say, "appear" to him) that clocks slow down near horizon. Your wrist watch (so-called proper time) will not slow down outside or inside black hole.

If you were to fall FREE into a black hole you would likely see NOTHING unusual both around you and at far distances at all (as long as you are in free fall) - because photons from distant stars which were seen "blue shifted" when you "hover" near black hole will now be seen "normal" if you fall free on black hole "together" with those photons.

So, you will probably not be able even to detect the event horizon crossing moment if you are in a free fall. But this is another (yet also interesting) topic for discussion.