"I’ve lost count of the number of times I’ve hit my thumb with a hammer."
In this sentence, do "the number of" and "count of" not have the same meaning? why do we use it twice?
Can we use it with those forms:
"I've lost the number of times I've hit..."
"I've lost count of times I've hit..."
I'm not native speaker and this sentence confused me, i hope i can express what i want to ask, thanks in advance