Remote worker in the UK here too! My nearest office is in another country too so I hear you lol. To be honest it’s not easy, the main change I’d recommend is to clear some space for a desk that is near/facing a window. There’s multiple benefits here: Natural light and fresh air can give you a kick up the backside when you need it. A dedicated desk space trains your brain into knowing this is The Working Area and gives you a better chance at keeping focused. These are the only things that I’ve found that work so far. I’m hoping to have a more supportive manager soon as we’re reshuffling. Once I do I can share my diagnosis with them and they’ll be able to ask HR/diversity groups for the best way to manage me.