I worked at a chair for 12 years - in that time I've seen a lot of PhD students go through this.
If it helps anything at all: It's normal. At this point, you've already proven you're smart and knowledgeable. Now, the universe wants to see if you can also finish what you've started. That's the main thing a PhD proves: That you can take an incredibly interesting topic and then do all the boring stuff that they need you to do to be formally compliant with arbitrary rules.
Focus on finishing. Reduce the scope as much as possible again. Down to your core message (or 3-4 core messages, I guess, for paper-based dissertations).
Listen to the feedback you get from your advisor.
You got this!
> Focus on finishing. Reduce the scope as much as possible again.
in my field this would be terrible advice. instead you need to be doing something that your audience actually will give a shit about.
Technical feedback yes, but always reject any career feedback from your advisor since the data shows it's unlikely a good model for future career success
It's been a long long time since I was the academic research world - but isn't 3 published papers pretty much the expectation for a PhD quantity of research?
This is spot on. My dad was a professor and had dozens of PhDs. The only thing differentiating them (as I remember him telling me) was the resolve to keep work as /tiny/ as possible. Who is remember for his/her PhD? Only the smallest cream of the crop. He even made good fun of worthless thesis by (then) well known professors. It’s not about your PhD.
When I did my MSc thesis he told me it was a pretty good PhD. (Before giving me a months work in corrections.) I didn’t understand back then, but I understand now. It was small, replicatable and novel (still is)! Just replicate three times and be done with it. You’ve proven your mastery. Now start something serious.