Best way to cut weight

You've been going great. Consider how long your plateau has been. A week, a month, 3 months? I lost over 80 lbs through a combo of dietary moderation and increased workouts (mainly cycling and summer ocean swimming). I hit a plateau in Autumn, been bouncing around about 10 lbs since. I've had several illnesses and other issues since then - then of course, covid lockdown the last month and a half. I'm male, 65yo and losing is a struggle. In the cycling world, there's a saying, "you can't outride your fork," meaning, the workout alone won't get you to the promised land. You need to moderate your intake as well. Lockdown has forced me to do just that moreso than before, and I've dropped beyond my former plateau, and now am doing indoor workouts to keep up the progress (frankly, I was bummed with the whole situation to begin with, but am now ramping back up again). A short plateau is fairly common, you can tweak or push your way past such as your body adjusts. Sometimes it takes a major effort to break through the plateau. MFP helps in this regard, and a good scale keeps you on track. When we're out of lockdown, getting your metabolism running on high again through outdoor exercises will help (I'm probably not going back to my gym until autumn sets in ... tbd). Good luck! 43 lbs is great - not everyone can hit an interim milestone like that.

Option 1: Ride out the plateau. If you’re doing everything ‘right’ then it will pass.
Option 2: (that worked for me) Try intermittent fasting. Stop eating at 8PM and don’t eat until Noon the next day (or eat for any 8 consecutive hours). This totally jumpstarted my weight loss again when I was in a plateau and I’ve been doing it ever since!
You’ve got this!!!

Are you tracking your calories at all? Weight loss comes from creating a calorie deficit.

http://community.myfitnesspal.com/en/discussion/10634517/you-dont-use-a-food-scale/p1

https://community.myfitnesspal.com/en/discussion/10697068/how-i-stopped-kidding-myself/p1