Age and genetics are important factors in weight loss. You didn't mention how old you are, but if you're not under 30 there's a good chance you're going to have a tougher time of it. And if you're overweight by 70lbs, chances are you didn't win the effortless weight loss lottery. So it's important not to judge yourself by other people, lest you start creating impossible expectations. This isn't to say you can't lose the weight, mind you, just that the rate at which that loss occurs and the experience is going to differ substantially between individuals.
While it is possible that you are hypothyroid, or have some other metabolic problem which is causing your body to hold on to fat, it is far more likely that you are simply eating more than you need to for whatever reason. Before you start medicating or looking for a metabolic problem like hypothyroid, try out simpler non-medical interventions first. Start skipping breakfast and see what happens. Intermittent fasting has helped a lot of people lose weight without resorting to the calculator and maybe it will help you. If that fails and your appetite doesn't re-adjust to allow you to lose weight, you might need to take the reigns for a bit and track calories.
Also, invest in a bodyfat tracking scale. The absolute readings won't be accurate, but you can get an idea of changes over time. If your weight doesn't move but your fat percentage is going down, then you're doing good.
And if that doesn't work, then yeah, you might have a metabolic problem. But I seriously doubt you can tell that after a month or two into a new lifestyle.
More broadly, if you find yourself wavering after a little more than a month, it's time to give yourself a slap in the face and remember that you're going to be alive for years to come, and that what happens in the first two months will quickly be forgotten. It might take some work to maintain and there is no such thing as a perfectly even road, but barring calamity you'll be looking back on this post in a couple years glad that you didn't give up so soon. When I look back on my food logs and journal from the first three months of zero-carb paleo, I'm actually surprised I stuck with it (auto-immune issues flared up). But now, a year and a half later and medication free, I'm really freaking glad I didn'tdid.