I am about to completely stop caring

Sadly, everything fits the same :(

I even received a comment from a colleague at work about what a shame it is that I have been putting in all of this hard work and nothing to show for it.

BTW, that colleague is a jerk.

I have a science background, so I always used weight not volume to measure non-liquids. most because 2 broccoli florets means different things to different people. I like pure data.

As a fellow data nerd, have you considered adding a fitness tracker? I have used Fitbit and now the apple watch and I feel it really helps seeing feedback on my physical activity on a daily basis. In addition to workouts, I see the days where my regular walking around is lower than normal, leading to fewer calories burned. I recommend using one that tracks heart rate. They are better at tracking calories burned, especially during workouts. 

Good luck to you on breaking this stall. I understand the frustration. 

Thanks Nerdy_girl, I will try that!

Wow !  I'm impressed with your discipline .  You should be losing fat like mad with this food plan . The only thing I can think of is that your weight training may be  helping   you gain fat-burning attractive muscle which weighs three times more than fat of the same volume.  Are your clothes sizes getting smaller while your weight stays the same ?  This is VERY normal for intense exercisers .

I say this with a bit of authority - I used to work as a certified personal trainer and gym floor desk manager .

Not really, I wish. I was looking up the Atkins induction phase that was recommended by another commenter. I had to measure my waist. I have lost 1" there and no weight since May 1st. I have to say thank you for correctly stating the fat/muscle density differential. People keep saying muscle weighs more than fat which isn't accurate. I am already pear shaped, so my waist band is always a little loose compared to my hip area. Maybe that's why I didn't notice it. I will say though that my skin has never looked better. That's the only thing keeping me going at this point. Very frustrating.

I cannot lose eating that many carbs -- not that you are eating anything so terrible -- but I immediately stop losing once I am over 40 grams of carbs per day... optimal is actually under 35.  I do not eat fruit or grains while in losing mode.  I also have to weigh my foods, not use standard measuring cups -- because I eat so much SOLID protein.  If you can put something in a cup, you are basically eating a slider food.  That clears my pouch very fast meaning I am hungry again a lot sooner.  WE do the same amount of physical activity ... eat about the same number of calories -- so the only difference I can see is your carb intake.  

I sure hope this helps you.

Edited to add -- I am also about the same height (5'5") -- 

Don't give up.  

Drop the oatmeal, blueberries, sweet potato, squash, hummus.  Limit carbs to green vegetables and dairy.  Get your protein from dense meat or fish - this is what will make you feel full.

I am 11 years out and have l Iost 21 lbs since June by dropping extra carbs and I eat 1200 calories per day easily.  It most definitely WHAT you eat when it comes down to losing regain

What is your height, current weight, and goal weight?