That is frustrating. I have the same and the cause is usually static electricity.
I've seen some wet the thread and push it down.
I can start the thread down the hole and keep pushing it down with a finger
You can tie on.
If you are the original owner, there was a wire threader included with the machine. You can thread with that.
HTH
https://www.youtube.com/watch?v=n1DOPdkZ7tI