Weight and inches loss rut

Hello everyone! This is my very first time posting on the community but I'm in a bit of a rut so I thought maybe someone can offer me some advice that could help fix that.

A little background about me- Im about to turn 29 and have been on and off dieting, healthy eating and working out since I was 21. When I was 21 I woke up one day and realized I was 215 lbs, had to start buying a size 16 everything, and generally felt terrible about myself. I have a really bad stomach and spent a lot of my teen years and 20s in and out of doctors offices and hospitals dealing with that. The past few years it's been more manageable but still the lamest thing about my body.

I'm a third year law student and right before year 1 I got myself down to the upper 170s, which was my greatest achievement other than getting a decent scholarahip to law school. Between the hours of work and stress my weights gone back and forth a few times between the 170s and 180s, until spring where I got really committed and got down to 173, the lowest weight since adulthood. It was mainly from tracking food, I wasn't working out more than like 2-3 days a week because it was finals but I was happy. My motivation was being engaged and knowing this summer I'd buy my wedding dress and in the fall I'd have my engagement shoot. Then summer happened and I became a summer associate at a law firm with all the perks and went a little too crazy. August 1st it was all over and I was about 184. I spent all of August and all of September so far kicking my butt. I've worked out 6-7 days a week, a mix of running, elliptical when I'm too sore, weekly personal training that's mainly weight lifting with some running afterwards, occasionally lifting solo, yoga, Pilates, boot camp classes and barre. I try to mix up what I do each week so my body doesn't get used to it, and I've gotten significantly better at running (even better than I was in the spring). I've also been maticulaously tracking on my fitness pal, always trying to over track when I'm not sure about something. I cook 90% of my food myself or make my fiancé follow my recipes (he's okay with instruction but I'm a better cook haha). I have my macros set to 30% fat 30% protein and 40% carbs. Generally carbs at night make me bloat or make my stomach feel meh so I usually eat them mostly with breakfast or as snacks. I have a Fitbit and a heart rate monitor chest strap so I use the two to calculate my fitness during the day and I estimate my food planning in the morning to what I'm planning on doing. If things go well and I have a lot of extra calories left I have some halo top ice cream because yum. I'd say I average eating between 1300-1600 calories a day, and always have at minimum a 750 calorie deficit on my Fitbit, but usually 1000.

So here's my rut. Despite all this hard work and wedding/self worth induced motivation, I'm hardly losing anything. I did the first two weeks, but then since August 16th I've lost like 2.5 lbs. I've gained muscle and lost fat but not enough that it makes sense. I don't have all of my data with me right now because I track most of it on a notepad but in the past two weeks none of my measurements have gone down, I have only lost .1% fat and gained .5% muscle and .5 lbs. In the two weeks before that I lost a pound, and my muscle fat % changes were a little more, and I lost about .5 inch in my hips, chest and legs, but honestly that is even less than I'm used to over such a time period. My waist won't go down which is what I need most for my dress.

I keep trying not to be too hard on myself and to keep working hard and be patient but this is getting long enough now that it's making me sad. I feel like all my hard work is for nothing. I won't feel better until I lose the summer weight and start working towards my long term goal again, but there's 5.5 lbs standing between me and that.

If anyone has any advice of how I can make this a more effective or positive experience I'd love to hear. I sometimes wonder if im not eating enough or if I'm eating too much, or if I should go back to my old really structured diet from when I was less active, but I don't think I can sustain that anymore. I am thinking about getting some kind of online nutritionist membership to try to get some help with this but I also feel like a lot of nutritionalists are full of *kitten*, and I can't cut cheese out of my diet or there will be no joy left in my world.

Sorry for this being the longest rant ever, I just figure the more I share the more help someone may be able to give!

Thanks in advance!!