I too live in the UK. I went to my GP and told him about my anxiety and he referred me to a local NHS talking therapy organisation. It took a few months but finally I started therapy for my OCD with an amazing therapist. It has cost me not a single penny. I don't know what part of the country you live in, and what sort of services are available but help is out there, and if your GP does not refer you, then I suggest you speak to a different doctor at your practise.
If you don't feel ready to take that step just yet then perhaps you could call
Mental Health - Mind, The Mental Health Charity - Mind They have an info line which I am sure would offer some help and advice.
And if that is a step too far at the moment, remember there are always people on here who are happy to listen to you, and to help in whatever way they can.