I told the girl I like that I would work hard and be strong, and then I would confess to her. The girl replied, work hard! What do you mean?

Just because girls reply and work hard doesn't mean there is no chance at all.

The girl you like said this to you. Reply to your confession

There may be a little distance from his requirements, so I hope you will continue to work hard.

So we should seize this opportunity. Without rejection, there is hope.