Believing that failure leads to success, he continued to challenge himself over and over again.

He lost everything.

Believing that failure is a stepping stone to success, he challenged again.

He tried to solve the problem again and again.

How many times have you been to Japan?

I watched that movie three times.

I believe that he will succeed.

He decided to continue the job.

I decided to challenge a new project.

I decided to take on a new project.