....and maybe that's a big part of what you need to share with someone. As well as wanting to 'get it off your chest' there's always the concern of burdening those close to you.
I'm not sure what your financial situation is but a good way to find a counsellor in your area is via the BACP (British Association for Counselling and Psychotherapy) at
http://www.bacp.co.uk/
Many years ago I worked in counsellor training and they were the body which all our counsellors, once qualified, registered with. There's a search facility so you can specify where you live, and if you want a counsellor with a particular specialty.