I keep making the same points on this subject but it comes from personal experience.
Due to the systemic lack of funding in the NHS, GPs are just not equipped and/or knowledgeable enough to be the ones dishing out the meds for mental illness. Unfortunately, for most people, GPs can be the first a and last port of call for mental health issues when, clearly, these cases should be referred to an expert. I have suffered from mainly anxiety attacks but also depression all of my life. My first panic attack was when I was 10.
Nicotine, unbeknownst to me, kept me steady from my teens right up until I stopped. After I stopped smoking, it all came back with a vengeance (within 3 weeks) and I was having multiple panic attacks a day.
Like a lot of people, alcohol became a crutch that I used because the GPs just did not understand what was happening and I was put on beta blockers etc. Nothing the GPs did or referred me to helped one, tiny bit. Actually, it made me worse as I desperately thought that there wasn't any treatment available.
I tried hypnosis, CBT, Chinese medicine, every supplement known to man, Yoga, acupuncture. Slowly but surely, my alcohol consumption increased. GPs used the alcohol to refuse treatment. They blamed my problems on my drinking and not realising that I was drinking BECAUSE of my symptoms.
I am not loaded, by any stretch of the imagination, but I finally saw a shrink privately for a few hundred quid - this got me 2 or 3 consultations. I was in my 30s, by this point. She got me sorted and pretty quickly.
After coming off antidepressants a couple of years ago, under the supervision of a shrink, I went into the worst depression of my life. As it happens, the old meds didnt work when we tried them again and it took 5 or 6 attempts to get the meds that got me back on an even keel. This kind of treatment would not have been available to me on the NHS.
But i got sorted. Once again, a private shrink got me sorted, often trying meds that the GPs didnt actually know about. I still have meds that I know are there, in case I have acute anxiety, but I never use them. But they are there : in my wallet, my laptop bag, my car glove box, my office drawer. I never use them but they are a comfort. Again, these meds are not prescribed by a GP, to begin with, but I get them, whenever I need them, because the GPs have a letter from the shrink.
And then there are all the things I have listed in my signature.