Hi im sin, I also suffer with depression, OCD, loneliness. I'm also suffering with the humid weather and as it's just beginning of summer I'm really struggling. I also suffer from SAD but mine is the opposite from most people, as I hate summer. Usually in summer I end up in hospital every year but I have broke this cycle and haven't been back in there since 2014.
The sluggish feeling is mostly depression but the heat makes it worse.
How old are you as you said social services so you must be only young.
If they aren't doing much for you can't you ask your GP to refer you to a therapist?