not 100% sure what to do.

Do you like vegetables? I see no issue with going "low-carb" by reducing bread/pasta/cookies/cakes and the like, even if you want to limit starchy vegetables, like potatoes and corn. But are you getting any fiber? I know the science can be twisted to support pretty much any stance you'd like, but I'm fairly supportive of the "eat foods your great-grandparents would've recognized as food" general mentality - the fresh stuff at the outer edges of the grocery store - veggies, fruit, meat, fish and dairy. You seem to have the animal products covered pretty well, and they're all tasty choices, and very low-carb. I think there might be room in there for a few more green things, though. And some of the other colors, too, maybe. Or at the very least, a fiber supplement. But I'd advocate for more plants. They're not just what your food eats.

The trick isn't to limit carbs, it's to limit intake overall.

There may still be reasons for you personally to keep away from them. Some people find certain types of foods to be "triggers", meaning that once they start in on them they find it extraordinarily difficult to stop. If most carb-heavy foods are like that for you, yes, it would be better to limit them. Also, many find that different mixes of the three macronutrients result in more or less of a sensation of satiety, and obviously it's easier to limit your intake if you feel sated. If you find that when you eat lots of carbs you're still very hungry, that's a good reason to focus more on protein and fat instead. But, absent the above and unless you have some kind of diagnosed condition like diabetes, limiting carbs for their own sake won't be helpful.

All you need to do is to eat less than you take in. 1400 calories is VERY low though, and I'd strongly suggest you eat more. When we get as hungry as we do by limiting calories that severely, we're often more prone to binging. You also want to make sure you lose as much fat and as little muscle as possible, but when you're losing that quickly your body is more likely to burn lots of muscle. Slow and steady is the trick.

So enter your stats into MFP's fitness profile, tell it you want to lose 2 lbs a week (which would be appropriate at your weight), and eat that much.

Don't worry about sodium unless you know from experience it's causing you a problem. It does tend to make us retain water, which leads to an apparently higher weight, but that won't be a concern for you right now. (MFP is confusing this way. With some nutrients, it's giving you a limit; with others it's giving you a goal. 3,000 mg of sodium a day is a limit. You should not be trying to hit it.)

The further trick is to be stricter than you're used to with portion sizes. All solid foods should be weighed as far as is practical, and your intake should be logged by weight rather than as "one serving" or "one meal". Don't measure solids by volume unless you have to. (For instance, the shredded cheese I see in today's entry should have been weighed rather than measured. Nutrition labels that give information based on a volume serving size will also give the weight in grams. Use the grams as your standard instead.) Do your best to find reliable database entries, since the database is mostly user-contributed and its accuracy can vary wildly. Packaged, labeled foods are generally accurate, or at least close enough, but entries for other foods can be fanciful to say the least. Don't pick an entry just because it's the lowest.

As you lose more and more weight, you will almost certainly find that the number on the scale does not drop continuously. It might stay the same for a short time. It might even increase. Don't let that worry you unless it goes long-term. Weight loss is not linear, and lots of things might contribute to your weight at any given moment that have nothing to do with your actual mass. (Water weight, food in the digestive tract, etc.) The weight loss rate you set should work out as an average over the longer term, and not necessarily what you will exactly see week over week.

As an adult male weighing 323 pounds, unless you're under a doctor's instructions, there's no reason for you to be restricting to 1400 calories. That's unreasonably low, and you can lose weight efficiently and effectively without needing to be so extreme. I'd highly encourage you to plug your stats into MFP and follow the calorie recommendation you get (making sure you're logging accurately, of course).

For some perspective: I'm a woman weighing 112 pounds. When I diet, I average 1500 calories per day and lose about 0.25-0.3 pounds per week. (I lose slowly on purpose). There's absolutely no reason you should be trying to eat less than I do.

I would raise your calorie intake by at least 400 to help you lose a bit slower and hold on to more muscle in the meantime. I hear you on the carb cravings though and I feel the same way about cutting back on them. It really is easier if intake is lower for some people. You sound like you are gravitating towards low carb quite naturally. There are both keto and low carb boards here that are very supportive, and many people on those boards have lost weight and improved health markers eating this way. There is also tons of info and links there to read through and help you on your journey.