I read the statement "this is like the 4th last time I do this." " to mean you’ve stated, “this is the last time I do this" three times already.

Do you use the word 4th in a word you wrote 3 times?

If you are trying to say, "I am only doing this three more times" then you could say the phrase “sorry, I have to do this three more times. " ""Some

have asked us, what is your opinions?”