Yes, I am a few years younger and my starting weight slightly lower ( but I'm also 5'7 ish), but I went from a size 18/20 to a size 10/12 now. This has been over a year or so, which might seem like a long time but you see and feel the benefits right away, not after a year.
It started with walking for about 45 minutes -1 hour per day, including uphill to break into a sweat.
Then I cut out sugar, biscuits, chocolate, cake, crisps, pizza, UPFs etc. completely. I don't drink alcohol anyway so that part was easy. I wasn't dieting, though, just eating healthy food, as much as I wanted. Snacks are fruit and nuts. Not sugar in drinks or milky drinks (I used to drink lattés). Home cooked, healthy meals.
Then, a couple of months in, I started swimming a few times a week which really moved things on, I don't care what anyone says about not outrunning your fork! In fact, I think this was the biggest change I made, the most impactful.
I then started running (or trying to run!), first running and then walking alternating, building up to longer stretches. Less of this than swimming, though. Just once a week or sometimes twice.
I carried all this on until I was about a size 14, when I actually started a "diet", as in controlling portions and feeling hungry etc.
Then finally to get to a (large) 10 I used intermittent fasting (16-8). Actually I was happy at a 12 but decided to lose more because of my diabetes risk. I'm on the border between them, just working on being a proper size 10 now.
I typed all that out because I started all this about a year ago(maybe the walking was longer ago) so it reminded me of my situation and I feel this has all worked well for me, so maybe it could for you? 🤔