@Kimlek thanks.
I'll just recap my journey that's brought me here: I started BSD way back in 2016, lost about 21lbs in the 8 weeks and another 7 ish, but gradually dithered about and regained some most of it. In Jan 2018 I decided I needed 1 more proper attempt, restarted BSD and started running. I lost 3 stone fairly quickly, and caught the running bug big time. Then pretty much since August 2018 I have bounced around the same target, putting on and losing the same 5lbs and always chasing a probably unachievable target of "9 stone something". The more I run and gain muscle mass the more unachievable it was becoming. Then lock down happened and whereas before I was managing to lose any gain, gradually I was adding only a few ounces a week but they soon add up.
The problem I have with 'dieting' is that I eat a lot, and I need a lot because I burn a lot. But I was getting to a stage where unless I ate 800 cals I simply wasn't losing anything. I do think bsd screwed with my metabolism a bit and I do think it brought out binge tendencies. Something had to give. I was running loads because I was eating badly, then eating badly because I was running loads and I was just stuck in this cycle over and over.
So on July 20th this year I started whole30 and since then I have stuck 100% to it, essentially eating only meat, fish, eggs veg, olive oil, fruit. No gluten, dairy, soy, sugar (yes, absolutely zero sugar in any form except whole fruit), no additives or preservatives, and no alcohol (for the first 30 day) . It sounds hard and I guess it is, but BSD has primed me for it anyway. 3 meals, no snacks (only 1 pre-workout if necessary) and no calorie counting or tracking or (big one for me) stepping on the bathroom scales. I weighed after 30 days and I'd lost 11lbs which considering I do not have much to lose is pretty good going. I haven't weighed again. I have reintroduced wine, (occasional, red) And there is literally not a single other food I want to have. It's crazy, But I feel really good on it. As a runner I would have constant aches and pains but since this I have not taken ibuprofen once. I literally bounce out of bed at 6 as well.
I think I will have lost a couple of pounds this month, but I think then this will form the basis of my maintenance plan. Just real food, as much of it as I need, but none of the extras. I will continue to run (about 30-40km a week) and do hiit and yoga, and I imagine that I will at some point be presented with something that I cannot resist, but the longer I go on, the more special that thing is going to have to be to make it worthwhile!
Maintaining is so hard but I hope that I have found a way that is largely sustainable for me, but that doesn't rely on counting and tracking forever.