Update:

I went to a walk-in clinic two weeks ago. The doctor there sent me for blood tests to rule out physical explanations for my symptoms. After those came back clear she started me on an SSRI. I was also given a referral to Access Mental Health for a psychiatric assessment to be done. The people from Access Mental Health called me to do an intake interview on the phone, after which they told me I would be informed of my appointment time by mail. I am told it can take 2-3 months if you tell them it isn't urgent (which I did).