Chilver Join us! How are you now illness-wise?
I'm sugar free on weekdays (with occasional 2 weeks of none at all after holidays and Christmas). When I had lots to lose (4 stone) I found just making small changes made a big difference and shifted 2 stone without too much difficultly - looking at my portion sizes, cutting back on carbs, less alcohol, no biscuits, walking around more - that sort of thing. Each small change with positive effects can set you up for challenging yourself even more with stuff like couch to 5k programmes.
Weighing is a necessary evil but you absolutely don't have to tell us. Seeing the numbers go down is motivating though. Measuring is good too, or a favourite outfit that doesn't fit.
Get that first 4lbs off again and keep on these threads for motivation to continue.