One meaning of the phrasal verb 'wear out' .

The most difficult thing about phrasal verbs is that they sometimes have several meanings.
Wear out is no exception and in this video we see one meaning of wear out.
As 'wear' is an irregular verb, we must say, 'I wore myself out yesterday,' 'I have worn myself out ten times this year.'
We hear people say 'I was worn out after sport yesterday.'