I'm so hungry

Drink water when you feel hungry. Don't cut out caffeine, if you're used to drinking it, because you'll get a headache and/or get grouchy. Figure out today what you're going to eat tomorrow, including a plan for snacks, then eat only that. Have a number of snacks around that fit your caloric deficit that will fill you up. I guess for me, the planning has helped. When I'm really starving and I have just 200 calories left, I scramble 2 eggs because they're filling and about 140 calories and they take the edge off that feeling that I've been deprived. Read through all the forum postings to get ideas about what other people do. The Food and Nutrition section is pretty helpful.

My biggest piece of advice: get low cal. hummus (here we have one that's 102 kcal per 100 grams), get carrots and selery, and just indulge on that stuff. Really, to eat 200 grams of hummus and 400 grams of carrots really isn't all that bad. It's still 600 grams of food, so it'll make you feel full, and it's low in calories. I do this kind of stuff because I too love snacking (and sugar).

Also, planning your days ahead helps greatly. I often enter 2 days into MFP so I have an overview of exactly what I'm getting in with the meals I have planned, e.g.: standard breakfast of low fat Greek yogurt with a scoop of protein powder, blueberries and oatmeal, lunch with 2 oatmeal raisin buns so I get my sugars in when I need them the most, and then a dinner with 200-300 grams of chicken breast, sauted in teriyaki sauce with some nut-rice and broccoli, and voila, I'm at around 1400 kcal. That would mean I have about 800 left on my own diet (slow cut, going from ~14-15% body fat to around 11-12%), which I can fill up with e.g. some ice cream (150 ml b&j peanut butter ice cream for about 400 kcal, a banana for 120 kcal, an apple for 60 kcal, and then maybe a small sandwich later at night if I'm still hungry, or a semi-large handful of walnots for about 200 kcal). This way it's fairly easy to keep track of what you're doing. Of course, I don't know your TDEE or where you set your calories at. If the 1400 prescribed in the "normal day" are already your limit: good, just eat that. Still hungry? Replace the raisin oatmeal buns by something more substantial, like making yourself a meal with shrimp or chicken, rice, and steamed veggies that you'll eat for lunch, for roughly 500 kcal.

When I started I started small and did what I needed to to move toward where I wanted to be. I set little goals. First it was just no sweets, then it was healthier foods in general but still a lot in amount, then it was smaller portions, then it was calorie counting. This kept me from going crazy. It's ok if it takes baby steps to get there. I'm not saying this will work for everyone, but I've been hitting my calorie goal every day now and I'm starting weight work. Mistakes are ok in the beginning, though you should continue to try not to make them again. Don't be discouraged, just think of how amazing you'll feel everyday as you get a healthier and healthier lifestyle. And if you're starving, sometimes a small healthy snack like a piece of fruit and a string cheese can give you a boost to go and exercise a little bit. Exercise usually takes off the hunger for me till my next meal. Water too.

Volume eating helps with the sensation of having a full stomach. Low calorie high volume foods. Spinach, bell peppers, mushrooms, egg whites, squash, etc. Start making recipes that include lots of these things to fill out the meal. You can eat a high volume of foods and pretty much never feel hungry. I'm on about 1,550 calories a day and am never really hungry.

Also play with your macros. Some ppl feel more full with higher protein or fat or complex carbs but it is different for different ppl, so see what works for you.

It takes some trial and error but once you have a better understanding of what your body needs for satiety it all becomes SO much easier.

Find something else to occupy your time so you don't think about it.

I've been mixing up some collagen protein powder w/ water or ice tea & it does give that full feeling. Protein is key to feeling satisfied

I went from eating until I was miserable to being ok with eating the majority of cals on my days off in one meal. That definitely did not happen overnight. I was a snacking queen. Like I said, I'd stuff myself and half an hour later be reaching into the fridge or pantry to stuff myself again. If only I'd stopped impersonating a Thanksgiving turkey I might not have gotten up so high.

It can be a useful practice to grab a glass of water when you get hunger pangs. I was doing this several years ago when I worked around food and found myself reaching to nibble. I'd grab a drink instead and fill up with water. Often, hunger and thirst feel similar. It's also an action that sticks in your mind, pinpointing just how much you turn to snacks.

Also, I agree with others that are saying to gradually decrease the calories until you're at your suggested intake. I think I'd have had an easier time starting out if I'd approached it that way. Good luck!

I'm always hungry the first week of a cut, no matter how small the deficit. Unless you're getting physically ill (headaches, nausea, etc), you may just have to wait it out.

Caveat: I'm only saying this because you've already mentioned how many calories you're eating. You can try changing up your snacks, that might help. Protein and fat help me, but it usually takes me a week before the hungries go away.