Nurse Emma Eveleigh, who works in Plymouth and has been a client of the counselling service, said a closure “would be a massive loss”.
Eveleigh said she suffered from severe burnout with anxiety and depression in 2018.
With no waiting list, charge or time limit, she said Haye Mill had been the perfect place for her to get help.
She added it took about 18 months but she was able to go back to a new job at the hospital, adding Haye Mill had “been there to support me throughout”.
Volunteer counsellor Catherine Tomlinson said she “loves where it is” and that “as soon as you turn in the drive, you feel the peace”.
Tomlinson said she felt “really desolate” at the prospect of the service ending.
“If every one of our clients gave £1 over the past 45…