system
Given the following post, respond as if you're commenting on Reddit:
human
Close to getting PhD but no motivation to finish.

Throw away account because it's very easy to figure out my identity from my regular account.

I am a fifth year graduate student in molecular biology.  My committee told me last week that I am done with experiments and I can start writing my thesis.  All last week I was supposed to start writing my thesis but I just couldn't do anything because I felt depressed and anxious.  I am somewhat disappointed by my graduate school experience and I have many regrets but now it's time for everything to come to an end and I'm not prepared.  I don't feel like I belong here, despite the fact that I have worked hard to get where I am.  I don't even know if I have the desire to work in science anymore but I have no choice because it's the only thing I know how to do.  Sometimes I wish that I had picked a different career. 

I chased my dream of being a scientist and I feel so dissatisfied.  I feel like I have nothing to look forward to.  I'm supposed to feel excited about writing and defending my thesis but I just feel burned out and dead inside.  I can't be the only person to feel demotivated about finishing there PhD.  How can I overcome this and feel motivated to finish?  

Before anyone suggests therapy, I have been in therapy for the last three years.  I had a therapist I really like but I had to stop seeing here because...she was diagnosed with terminal brain cancer and only given a short time to live.  I eventually started seeing another therapist but things didn't work out with her.

Edit:  Thanks everyone for all the advice and motivation so far.  I didn't consider that explaining why I dropped out of a PhD program after 5 years could be detrimental to my job search.  I finally had the courage to start reading some papers again after doing nothing for a week.
gpt
Finish it. 

Take a short break if you can. Climb a mountain, visit a monastery, smoke a bunch of pot - whatever it is that can let you decompress.

Then come back to campus and finish your degree. You can decide on switching careers later on, but get that degree.