Hi,

I'm also a Phd student in my last year and i know exactly the level of stress it involves!

The part that struck me about your message was when you said your supervisor cuts you off when you explain something. I have exactly the same problem and for the past 2 years have been trying to pluck up the courage to sort this out but it's really intimidating.

If you cant talk directly to your supervisor is there someone else who could maybe give him a polite talking to? My supervisor is a scary guy but luckily i have great colleagues who stick up for me when times are rough.

Just remember that it's not only you, every single PhD student in the world gets immensely stressed out and thinks they wont make it. There's also something called imposter syndrome where you think someone will soon realise you dont deserve to be there. But you do, keep persevering.

I hope it goes well for you and if you need to have a good long PhD rant then I'm available! Good luck!