There’s so many things that can be awful in the PhD.
Tight deadlines, fuzzy goals, abstract references, weird politics, bad supervisors, hard topics, vague questions, and a lot more…
And that’s the tip of the iceberg, the general postgraduate researcher problems. Some people have it much harder.
A lot could be good though. It might not all be, but as you get to the end of the PhD, when the viva is just around the corner, I’d encourage you to think about all you are grateful for from your time as a PhD. What opportunities did you have that you might not otherwise? What did you learn? How did you grow? Who helped you and how?
Being grateful can help shift your focus. If you’re feeling down about your work or the journey, look for the brighter stuff to help steer you into a positive place for your viva preparation.