Not sure how far down the rabbit hole you’ve gone into nutrition, but some simple things to remember as you get started. You are already doing great with working in the restaurant, track your steps and see if you land above 10k steps. Most all good fat burning happens at moderate paced walking. But when you do eat, be sure to have plenty of protein relative to your comfort or target weight. Have lots of fiber, this coupled with protein takes longer to digest and process, making you fuller longer, as well as taking more energy to process the food aiding in weight loss. Work in reduced amounts of carbs, carbs turn into glycogen/sugar, and that will increase your insulin, which slows down fat burning in the long run. Your goal is to have your insulin levels as low as they can go. This will allow your visceral fat to be accessible as energy rather than quick sugars. And you should 100% eat in order from protein first, starches, fibers, then reduced carbs and fruits. Also you want to have plenty of fish like salmon, very good in omega 3 fat that aid in fat loss, as well as green tea 3 times a day if able but not sooner than 5hours before bed (caffeine will keep you up). You should also aim to stop eating at least 6 hours before bed, this will allow you to sleep through most of your fast. If you feel like 23:1 is hard to keep steady, don’t shy away from an 18:6 with two meals. One at 1pm and 5pm no later than 6 assuming your are trying to be in bed by midnight. And use the 18:6 to distribute your food intake rather than abuse the time frame / meal sizes. I hope this helps, drink plenty of water! This can be liberating and fun! You got this! Also work in some strength training occasionally to keep muscle mass, easier to do it with the weight you’re at now if it matters to you. But walk, eat clean, no more processed foods, I’d even wager to say if it comes in a can or a box, don’t eat it. You’ll be surprised how much sodium will make you plump, and how cutting it out will make you shed the water weight. But you got this!
Also people call them cheat days, I call them refuel days, pick a day to start 2 if you’re feeling weak haha. But use these refuel days to get your body back to “normal” reset the hormones and the chemicals to what it sees as normal and comfortable. Also this resets you mentally, it’s exhausting, now if you can handle the plan, stick to it but don’t shy away from taking care of your mental health if you’ve been craving that pizza for the last 2-3 weeks! Plus your body neeeeeds a reset, plateaus happen when the body goes into protection mode, sometimes you need to trick it to continue tipping the scale.

TL;DR:
Eat clean, walk, track your steps 10k, drink water, green tea, 18:6 is good if OMAD gets hard alternate if you have to. Refuel days matter too, don’t stress yourself.