I've done SW 3 times. First time, lost 4.5 stone. Got bored and gave up going. Over next 2 years regained 3.5 stone. Joined again, different group, but still didn't enjoy it. Got back to a similarish weight. Gave up. The slight difference the second time was that I did start going to the gym, which I really enjoyed.
Anyway, was then in a relationship and over next few years got 'comfortable'. 4.5 years on, I was basically back to my original weight. Rejoined a third time, this time lost 7 stone in a year and got to within half a stone of target. That was last September. I dropped off it for a few months due to personal
tit, rejoined in January, had gained a stone. Had lost 10lb of that prior to lockdown.
Since then I've not weighed myself but I think I have gained 1-2 stone (based on which clothes are now tight and/or don't fit) due mainly to eating chocolate, far too many carbs (bread, potatoes, pasta) and not exercising. Oh and the break up of my relationship (which as he was my best friend and I don't really have other friends) has been pretty
crappy
However am now trying to do at least 30 mins exercise a day, and watch what I eat. Hopefully at some point I'll be brave enough to get back on the scales!
What I found made the difference the most recent time was cutting my carbs massively. I'd always done the unlimited pasta - however I love pasta (Italian heritage) and could eat massive quantities. When I lost the 7st, I only had pasta and potatoes 2-3 times a week max. And tbh I didn't miss them after the first couple of weeks.
Re the binge eating - I've been a binger for 20 years (as a result of a past abusive relationship where eating was my only comfort), so I can't blame SW for that. I will only really binge on snack food or bread. I keep all my bread in the freezer, and try to keep all snacks to under 100 cals per item. I relaxed this at start of lockdown and bought biscuits and chocolate (my nemesis) mainly to keep my now Ex happy (didn't work!). Have now stopped this...if it's not here I can't eat it. I never have the urge to binge on fruit sadly!