the rubber in my shoes should "ground" (fancy electrician term for "defuse") any electricity
It does the opposite of that and keeps you from being grounded
And yeah you could probably replace it, youtube us good resource into how. Would be the first thing I would do since especially if it's an older breaker they tend to degrade a little over time and prone to trip.
My recommendation, watch a vid on how to do it, buy a non-touch voltage tick (you can get one at home depot or lowes) turn off the main breaker, open the front of the breaker box (should be like a screw or two holding in place) and then uses that voltage tick to verify it's off (there probably exposed metal bus at the back) you can even test that voltage tick in an outlet before you cut power, they general glow and/or chime if there is voltage present. Then unscrew the wire(s) and tug the old breaker out, they usually "rotate" out of their socket, as they clip in on the "inside" side of the breaker and are held on a rail on the outside side. Pop the new one in, reterm the wire, put the cover back on, turn the main on, and should be done.
EDIT:
Also wear some rubberized gloves, even those thick rubber ones for gardening is decent enough to prevent shocks or worse.
If you are uncomfortable though of course don't do it. But it is doable to replace a breaker
