After a review, Peer2Peer closed in December 2019. There are many other mental health resources available in Cambridge. We've picked out some of the relevant links below.
University Counselling Service (Self-help resources)
Student Advice Service (Exams)
Disability Resource Centre - a service which offers a range of support to students with mental health conditions, including specialist mentoring (over 6000 hours of support this year, with highly positive student feedback).
CUSU Advice
CUSU LGBT+
Graduate Union
Nightline provides non-judgemental, anonymous listening between 7PM and 7AM during term.
If you're interested in other Cambridge resources (including resources for urgent help), Student Minds Cambridge have an amazing website at https://www.findsupportcam.com/