1610 cals a day and I'm so hungry and miserable

I can't see your diary, so I don't know, but are you meeting your goals for fiber? Many people find that when they get sufficient fiber, it's easier to feel full.

I'd do two things:

Change what you eat. Experiment. Some foods are more filling for their calories than others. Maybe you can find a way to stay within your 1,610 kCals and not feel as hungry. (Try things rich in protein, fat, and fiber?)

Exercise. You have a specific weight loss goal, a rate at which you plan to meet it, and a calorie deficit to aim for. Burning more calories with exercise lets you eat more without affecting your deficit, which means you'll lose weight at the same pace. (Of course, you need a good idea how many calories you're burning, and you'll have to eat no more than that number.) Do moderate exercise like a long walk because it won't make you as hungry as more intense exercise like a run.

Agreed, you may want to start less aggressively if you're having issues maintaining. While we all want to lose 2lb/week, sometimes it just isn't the best option.
There are a lot of people that when they start (and they're serious) that they find they're hungry - it's not surprising. We've listen to a lot of false signals about when we're hungry that we can be used to just eating whenever if 'feels' like it.
Up the fiber intake, drink a lot of water (sometimes hunger is also dehydration), and reassess what is best for you.

Konjac root... Also known as gluconnoman powder can expand a bit in your tummy to give you a sensation of being fullet until you become accustomed to smaller volumes of food. Brothy soups help too.

What is your current height, weight, activity level and weight loss goal?
If you have less than 50 lbs to lose then 1 lb a week is reasonable, 2 lbs per week is too aggressive. If you have less than 20 lbs to lose then a rate of .5 lbs a week may be best.
Log everything you eat as accurately as you can. Get enough protein, fats and fiber.

As highlighted above just walking 10,000 steps per day would allow you to eat an extra 400-600 calories per day so you end up being able to add in a little more variety (or something to look forward to) to your diet without impacting your rate of weight loss.

It doesn't have to be fast walking and if you have a smart phone there is probably an app that measures the numbers of steps - or you could buy a cheap pedometer or use something like a fitbit. It only takes 20 minutes to walk a mile (approx 2,000 steps) so getting off a bus stop or station early or walking rather than driving a short journey makes it easy to keep up with the 10,000 steps. The steps will also help improve your fitness and boost your metabolism so you burnt calories more easily.

Lots of people I know have ended up using a fitbit to lose weight by competing with friends or work colleagues. The fitbit app links directly to myfitnesspal showing the extra calories you have burnt from your steps or exercise.

The pain and misery does end when your body adjusts. You are probably used to eating more sugar, and it is particularly difficult to break yourself away from the clutches of sugar.

I feel your pain. I have been dieting since around November last year and have lost 26 pounds. I'm about the same height and weight as you (now after my loss, lol) but I'm 59 years old. What I have found helps the most is lots of water (or calorie free drinks, not soda) and the less carb I eat the better. I am not on a low carb diet but when I eat a lot of refined flour it seems to make me much hungrier. Also MSG seems to turn hunger up, watch for it in snacks. Three meals a day is really important. Don't save all your calories for the end of the day or you will be ravenous. I am walking a little every day and that seems to calm my hunger. The other thing someone else mentioned was liquid. That was a big deal for me. I never used to drink water at all. I have changed that. It took a few months before my natural thirst came through. I had been supressing it for so long I didn't even realize I was thirsty. I am shooting for 1200 calories a day. Keep in mind I am very sedentary and older so I don't burn like some people do. I also have a low thyroid which doesn't help much. I would suggest losing 1 pound a week so that the diet is livable. Frankly losing fast never lasts. You need something you can live with because it's going to take a while to get to the weight you desire and also you want to keep it off. You can never go back to eating the way you used to so make this change something you can do for good. I have in the back of my mind that I will likely be on 1400 to 1500 calories a day for the rest of my life (yours could be much higher) so I am finding things I like to eat and strangely my tastes are very slowly starting to change. I know, I would never have believed it if someone told me that. And yes smaller portions really do satisfy me. That was tough to learn too. Now I find I can't eat nearly the quantity of food I used to. Last of all every couple of weeks if I've been doing well I give myself a little extra like maybe 300 or 400 calories for a day only and then I feel like I've reset my body to keep losing. I might go out for lunch with a friend or something like that. Might be silly but for now it seems to be working. Good luck and don't give up. If you have to go up a couple hundred calories for now do it but keep journalling the food it really does help. Keeps you honest, lol.

Oh man... it changed b**tards to *kitten*... I don't want to whip kittens. I like them.

PORRIDGE is my saviour I'd be really hungry if I never ate it like today I haven't & im hungry I'm on 1300 a day with 70lbs left to lose