SGK
CBT wiki here
In my case my CBT programme was about making me realise certain triggers, like not sitting in a slouching position where my hands would automatically go straight to my scalp and about spotting if any other factors triggers my trich. It was about helping me to conciously stop myself from pulling and try to address the causes be it boredom, stress, anxiety etc. I found that it worked best for me on a one to one basis with my therapist and the group sessions were not really productive. Its not a cure but has helped me.
My trich has been with me for years, at least 25 years and I know it wont go away completely or even lessen quickly but I feel empowered now I have had help addressing it and have been told its not a bad habit but an actual behavioural problem I have.
I would certainly ask your GP for a referral stating the impact it has on your day to day living, self esteem etc. I think my GP referred me as my trich had escalated with both AND and PND and due to some very shtty things happening in my homelife. I had asked her for a few years for help with it and none was forthcoming tbh.
There may be a self referral CBT team in your area, I would definately do some research into this and if you work, some employers offer employee councelling and CBT is sometimes included in that.
I am off to bed now, knackered but I am more than happy to chat with you on/off the board in more detail, offer you support etc. I dont have CAT but you can email me. Will add email address in another post so I can then have it deleted.
Trich is a recognised disorder and you should receive treatment for it!