Hey ant. I'm in the uk too. I also have (clinical)-depression. I agree with what the others said, especially Coolfitz and nelco, you don't have to feel ashamed whatsoever. I'm proud of you even though I don't 'know' you, for getting this far.
just take your time and share when you want to. No pressure. Feel free to write a billion words or just a few.
As for more practical help: I went to the local substance abuse building or Rehab, run by the Council. I'm sure you have something similar wherever you are. I detoxed at home, but got some meds from the rehab place to help with the withdrawal symptoms. You can do that.
I am on Effexor (Venlafaxine)-for my depression.
One step at a time, ant. That's the way forward.
You've taken the first step by writing your post on this Board. Just keep on keeping on.
Feel free to Pm me.
Take care!