Just because you can't fathom yourself doing it, doesn't mean there aren't people out there doing it.
I myself know the feeling, I am not naturally (by meaning of genetic strength/tendons, ect) strong at all. I started out struggling with the bar. My little brother on the other hand at <120lbs could bench his weight the 1st time he tried
I wrestled alot with him as a little guy, he was strong as shit then too.