Catch a break

Catch a break - to have a stroke of good luck, to get the opportunity you were looking for

1. He caught a break eventually after he ran into an executive producer on a big-time show.

2. He caught a break when selectors chose him for the Sri Lanka Tour.

3. After failing for many years, finally he caught a break when he went to audition for the new Netflix Show.

Can't catch a break - failing constantly, always fail, nothing ever works out.

1. I don't seem to catch a break.

2. Everyone feels like they can't catch a break at some point in time. 

3. When you are an aspiring actor, you can feel like you can't catch a break.