Hello fiveleftfeet - I was a bit heavier than that when I started and I began with intermittent fasting 16:8 (fast for 16 hours out of every 24, eat within an 8 hour time slot - its easy because the 16 hours includes sleep! An example would be fast from 7pm until 11am and eat lunch/ brunch at 11am and your evening meal at 6pm, but you can do whichever hours suit you).
There's no one right way to do this - what is important is to think about why you're overweight.
Do you snack in the evening after the kids are in bed/ after your last meal? If so intermittent fasting can really help because its a hard line - you just don't eat after X time, its uncomplicated but you're not denying yourself anything - you can eat whatever, but you just have to wait til tomorrow (and the odds are that you might not want it/ as much of it during busier daylight hours, but if you do, you can have it).
It could be that its what you eat that's the issue not the quantity and it might be more useful to try to cut out fizzy drinks first, or it could be "grazing" on snacks due to stress or boredom or procrastination or it being the tiny thing you have just for you when small children are with you 24/7 - if its grazing through the day then it might help to make a conscious decision not to eat at your desk or only to eat at the dining table if you have one, or not to eat by yourself if you eat meals as a family.
If you don't know where to start a lot of people find it helpful to spend a few days or a week not changing anything but keeping a really honest food diary of what they eat and when, and if possible why (meal? genuinely hungry? Just fancied it? Bored? Comfort? Cold? Stressed? Avoiding something else? Social eating with friends/ partner?). You can look at that after a few days and think about one change to make first - for example no eating directly from cupboards alone in the kitchen, I'll offer everyone else food every time I want a snack and that will help me think twice about it! Or instead of heading for the fridge when I'm bored or when working from home is stressful or the kids are bickering I'll find a different distraction - go for a walk/ bath/ put some music on/ do a 3 minute relaxation exercise/ watch cat videos on YouTube 
Good luck!