There is no failure in life
only Succeed either Experience
In the mission of chandaryan-2
before landing, we lost the connection
only 2km something is left, scientists trying to connect with the lander
after that, we got lander image from orbit
we have 95% success in this mission trying to connect now also
ISRO team got Experience and success both
NASA also got bad Experience many times and after lots of attempts they got success
We can also use the same thing in business also
but businessmen take lots of stress and tension after loss
attempts death
Never give up
surely You will get success