@youngwolf Two weeks isn't enough time to get rid of statistical noise, so I don't think the problem is your actions, but rather your expectations. If at the start, you had a nice poop just before weighing, that's a pound or two. And during the deficit, if you are changing your salt and carb intake, then that's gonna cause you to hold onto water differently. If you are eating more veggies, that's more fiber in your gut. If you're supplementing with creatine like you hopefully should be, your muscles are holding more water, that's what creatine does. Most people just gain 2-3 pounds of water from that but, like, I'm a hyperresponder to creatine and vary 10-12 pounds of water weight on/off it.
So let's say you had a poop, changed salt, carb, and fiber intake, and have been taking 5mg of creatine per day. You should be up 5 pounds. You're only up 3. Congratulations, you lost 2 pounds of fat. On the other hand, if that was flipped, where you stopped taking creatine, pooped before the later measurements, and adjusted carbs/salt to reduce stored water, then you should have -5 pounds. You're up 3 which means you gained 8 pounds of fat! Neither of those extremes are probably the case, so all we can say is that if you change your diet and lifestyle, your day to day weight will be +/-5 lbs. If you're in a 500 calorie deficit, that's trying to lose 1 pound per week (3500 total deficit per pound), so you won't know for sure that you're out of that +/-5 pound range (17,500 deficit) for either 6 weeks or until you have a measurement 6 pounds lighter than the initial.
The first two weeks of a diet are statistical noise, thats just priming the system. Rather than a specific day's weight, look at something like a 3-day average. Then, the two data points to pay attention to are 1) today, two weeks in after your body has adjusted to everything and 2) two weeks from today, 4 weeks total. It sounds like you're doing things the right way though; your focus is mainly on diet and you're tracking things as well as you can. It sounds like you're used to being in control of things. You're still completely in control but just need to adjust expectations. You're focused on the results after two weeks. Instead, focus on two years.