This forum (and I know it occasionally falls into the arguments at times) can be an utterly ace place. Not a big fan of the likes of Facebook (wasn't it Damocles who referred to that as a 'game' - and I get that), but deep down, there's such warmth and humour and intelligence on here that it's essentially a big 'hug' when all of us need one.
Similar thread to the depression and medication one - some wonderful advice on there too. Hard to give trusting advice really (there are a few on here who work in that realm who might be better at giving out more prescribed advice), some things you'd expect to help might not (walking for example...often not the best thing to do).
Oftentimes there's a battle in your head, usually overthinking stuff (in my case) and it can feel like you have to out fox it. Although I have a family, there are moments when I'm perfectly happy alone. I need that bit of peace occasionally and I'm someone who 'gets on with themselves'...but there have been moments when I felt the weight of loneliness and didn't particularly like it. These are usually when I'm not feeling buoyant mentally.
I cut down drinking a lot (almost to a whimper at the weekends), but there are times when it can be an utter joy (without alchohol during my teens, twenties and thirties I swear I'd never 'make sex', go out or ever meet a partner...it was my medication for pretty severe shyness and it worked, despite the side effects). Only as I hover around early forties as my shyness dissipated somewhat (how...I don't know, but letting go of self conscious feelings was a huge start). That's affected everything I ever did or tried to do.
I've only recently 'reconnected' with pubs (hard to get out with family life) and they're great social places, but these days I'm very mindful of the 'dark side' of drinking. Manchester's great in that even in the 'trendier' part of town (the NQ for example), the bars are generally ageism free....pubs tend to be like that anyway.
Can you exercise (usually good advice, but some people due to physical ailments cannot do much in the form of training)? I always 'go a little under' the moment I stop a sport...I started running at the end of last year - started of doing a park run (great opportunity to meet people/new friends) and then carried on from there. Unlike walking, running seems to override my 'overthinking bassoon' in my brain...pretty meditative, but also my thoughts are redirected to my aches and pains! Post exercise I'm frothing with endorphins.
Take that five a side offer up for a start Ste or bob down a Park run....there are dozens in and around Manchester.