I would steer clear of any social media that might remind of your sitch or inflict more pain. The more you ween yourself of that, the more you'll be able to detach. At the moment you are clearly trying hard, but not succeeding. I have/had a similar issue - my W doesn't do FB or other social media, but I've been snooping and that's my downfall and what I have tasked myself to stop. It doesn't help at all.Just stops us detaching.
As for this forum, no I would say the opposite. Being on here might be a reminder of what you are going through, but here you have the support of all of us who have been or are going through the same thing as you. We can pick you up when you're down, give you a confidence boost when you need it, set you straight when you slip up, give you skills that you need to manage your way through your 'long and painful' journey. I'm still near the beginning of mine, but I find being on here invaluable.
I'm clearly just a newbie myself so feel a fit of a fake giving you the benefit of my [very limited] wisdom (!), but it's been a real help to me just be able to vent and get guidance from those who have been there before. The rollercoaster of emotions you describe from last night - I've done that all over the weekend and I'm through the other side, and feeling better today. It's going to be like that for you (and me) for some time. Good days and bad days. On the good days, enjoy every moment, feel good about yourself. On the bad days, try to remember the good days and that they'll be back soon.
One day at a time. LRT, detach, GAL. Repeat. It will become the norm, and you'll eventually feel better for it.
England tonight. Get some beers. Enjoy the game. Kane hat-trick.. boom we're happy again. Just for a while. GAL. It's your life. Take control.
_______________________________________________ M47 W50 T-21 yrs M-19 Yrs S17 S15 D12 Found out about A 04/12/18 BD 04/15/18 Admitted A, name of AP and separate rooms 04/29/18 Told kids 07/22/18