PIP award review

Hi
I have just received the dreaded review document for my PIP award.
It is much shorter than the previous incarnation so I suppose that's positive.
Questions:
1) When I take the test here to see how many points I could be awarded, the way the questions are asked on the form and the way the points are awarded are different. So should I aim to answer thinking about how points would be awarded?

2) Also, I am one of those with mental health issues and in the very long process of being assessed for autism. I am not taking meds for my mental health (on advice from GP) and this played against me the last time. The final stage of my autism assessment won't happen in time for this review either.
So what are my chances?
I went through mandatory appeal and then appeal last time. DWP gave up just before the tribunal. I am already struggling, knowing I've got months and months of this ahead of me. Last time, the whole thing took a year from the form to the final outcome. It is so stressful.
Looking for advice and recommendations. Thank you.

Hi Gary, please accept my apologies for not replying sooner. Life has just piled on me again.
1) You suggest I should treat the form as if it were a new claim but the first question in a lot of sections is "Tell us if anything has changed and approximately when".
Any advice on how to tackle this?
2) Last time, as stated above, I started the appeal process but the DWP gave in at that point and reinstated me as before. So I don't have a tribunal letter. I'm not sure I still have the letter with that award still (I was so angry with them for dragging this on for a year...).
3) I can only submit copies of emails stating that I am still waiting for a date for the final stage of the autism assessment: will that do?
4) Is it true that the DWP don't get in touch with the GP?
5) In which case is it any use the GP doing a supporting letter with the review at this stage or wait till it gets to appeal (which no doubt this will... if I go by the stats for mental health/autism)
Best,