Don't lose heart; we're almost there
She was tempted to lose heart, but she persevered
He tried not to lose heart when his first business venture failed
After a series of setbacks, it's easy to lose heart
The team refused to lose heart, even though they were down by three goals
When things get tough, it's important not to lose heart
He's been working on this project for months and is starting to lose heart
If you lose heart now, all your previous efforts will have been in vain
Despite the difficult circumstances, they did not lose heart
The coach encouraged the players not to lose heart after the initial defeat
This project is proving very difficult.
Don't lose heart, we can still succeed.
I hope you are right about that.
Don't lose heart; keep trying
Don't give up; keep trying
Stay determined; continue your efforts