The second sense is mistranslated. The meaning here is عرقلة أو إعاقة.
The first sentence is also not translated precisely, but this one is tough to translate! Frustration is not the same as anger or fury/rage. It's what you feel when you feel like you're not getting anywhere with something despite lots of effort, or if a problem has persisted stubbornly for a long time, or something like that. It's that feeling of helplessness and anger that can make you want to pull your hair out.
Some examples:
I've tried talking to him three times, and he just won't listen to me. It's frustrating.
I'm frustrated because I've been working on this problem for an hour and I still can't figure it out.
I thought we agreed you were going to stop doing that. I can't believe you just did it again. This is frustrating.
The first sentence is also not translated precisely, but this one is tough to translate! Frustration is not the same as anger or fury/rage. It's what you feel when you feel like you're not getting anywhere with something despite lots of effort, or if a problem has persisted stubbornly for a long time, or something like that. It's that feeling of helplessness and anger that can make you want to pull your hair out.
Some examples:
I've tried talking to him three times, and he just won't listen to me. It's frustrating.
I'm frustrated because I've been working on this problem for an hour and I still can't figure it out.
I thought we agreed you were going to stop doing that. I can't believe you just did it again. This is frustrating.