I first tried to tackle the translation of this famous sonnet around 1970.
I failed. 
It appeared in my 'Tide and Undertow' (1976) as an example of a failure
in translation.  
This was because - as with most poetry translations 
(most poetry-translations are failures) - 
I tried to be too faithful to the difficult original.

Recently (2023) I read the following mis-quotation (mis-translation) 
of the last line of this poem in an essay 
by the popular, much-translated poet Heaney: 

          *You must change your life.*  

Well, changing one's life is very much NOT 
the same as changing your self. 
So I went back to the original and decided to have another go. 

Although I retain Rilke's rhyme-scheme 
(which I think is important) 
I have been more relaxed (and maybe also more perceptive ?) 
in my approach some fifty years later.