Where do you go for support with teens?

[covewove71]

I have a DS who is 2 and a teen stepson who has recently moved in. With the two year old, when I have worries, I can access help through the children's centre, health visitor and various facebook pages. But there seems to be very few places to turn to for help with my teenager! There is no children's centre or health visitor equivalent (as far as I can tell) and most of the facebook groups/websites seem to be for parents of younger children.

I know there is Mumsnet and I have found these two helplines useful when things have got really tough,
www.familylives.org.uk/
www.youngminds.org.uk/

but I'm wondering (and really, really hoping) if there is something else I am missing. Any FB groups I should join? Organisations that offer help with teenagers? I really need a place to share the challenges and also to get practical advice.