IIs this fixating?

Hi,

I'm currently waiting on a diagnosis for autism. However, I'm not sure if something I've experienced for many years is an example of fixating, anxiety or both.

Where I live the parking is a nightmare and I get stressed out and anxious when people don't park considerately or the parking is really busy. I struggle to do anything else as it just takes over in my mind.

Sorry if this sounds stupid to other people but this is something that is getting me down and has done for years. I've tried talking therapies but it just doesn't seem to have helped.

Any advice is greatly appreciated.