If someone has to tell you your purpose it is not your purpose—it’s theirs. If someone tells you their purpose and you are convinced that it should be your own… well then it might honestly be your purpose. Or you’re doing that mirroring thing again that we social animals tend to do…
Personally I believe life has no inherent purpose. We’re a runaway chain reaction with physical and emotional needs that have been bred and trained into us. Accepting this is painful—especially if you’ve been raised in any sort of religion that preaches about God’s great plan for you and the “purpose of life”. But once you internalize this: you are free to make your own purpose—though naturally any purpose you choose that runs counter to your human nature will likely bring you sorrow.
One such tool I enjoyed years ago was reading “Man’s Search For Meaning” by Victor Frankl.