Good morning everyone, hope no one is too drained from losing an hour of sleep last night.
I've been having some issues running a cut lately and I'd like some input. But first, here are some stats:
Age: 26 (27 in April)
Height: 5'7"
Weight: 168 lbs
Body Fat: 12-14%
Lifting Experience: 10-11 years
Supplement Experience: 1 basic test cycle this past August-December

Ok, now for the diet. For a while, I was using my TDEE and making calorie adjustments based on a (45/35/20) protein:carb:fat ratio and it worked fairly well. I used one of Makwa's TDEE bulking cycle diets by running my TDEE for a week, adding 250 cals week 2, 3, and again week 4, then dropping down to my new TDEE for week 5 and repeating the cycle. This took me from 162 lbs to roughly 180 lbs at the end of my cycle. I have since reversed this TDEE cycle by dropping calories by 250 about a month after PCT was complete in December so that I didn't drop too soon or lose the gains that I earned by rushing into a cut. All calories were split amongst 6 meals a day with carbs primarily pre/post training. From the start of the bulk all the way until now, my food choices have always been from clean sources. During the bulk I was a little more lenient and selected some fast-digesting carb sources post-workout. Protein sources are lean meats like chicken/ fish/ turkey, along with some low-fat red meat and pork (all excess fat being cut off), whole grain carbs, and healthy fats from nuts, avocados, olive oil, etc. Also, I would have 1 cheat meal a week typically on Friday evening when I go out to dinner with the lady friend. Even with this, no excessive alcohol or going completely overboard on what I eat. So now, here's my dilemma.

The beginning stages of the cut worked great and took me to where I am right now, standing at 168 lbs. I've lost all the water weight I gained while on test (cycle was only a test cyp cycle at 500mg/ week with a 250 taper up and a 250 taper down, all support supps and PCT as well), and lost the few pounds of fat I gained during that big increase as well. My current TDEE is 2035 cals. I will explain this more in the training paragraph below. My dilemma is that I have hit a plateau lately and cannot seem to lose any more fat without depleting my cals too drastically. It feels like that If I drop another 250/ week for the new few weeks and reassess my TDEE, I'm probably going to end up at 1,000 or sub-1,000 cals a day but still at a higher percentage of body fat, which seems like I should only be at super low calories when I am already in single-digit body fat percentage.

Training. I train 5 days a week with 3 on/ 1 off, then 2 on/ 1 off (off days Thursday and Sunday). My workout split is Chest, Shoulders, Legs, off, Back, Arms, off. Cardio days include alternating HIIT for roughly 20 minutes or low-intensity cardio for 30 minutes every Monday/ Wednesday/ Friday. My lifts focus on heavy weight at 6-8 reps for 3-4 sets with typically a volume set at the beginning or end as well. A mix of compound exercises with some isolation, typically no more than 5-6 exercises per muscle group.
My daily activity is where my metabolism slows down though. My job is to sit. I'm a full time and a half student (sounds strange, but I take 20+ cfedits each term), work part time managing the college recreation facility and also part time in the federal sector as well. Packing meals and getting the calls in is the easy part, consistentcy and dedication to my training and nutrition is also easy, getting out of the chair is the part I have little control over until the work day is done.

With all of this in mind, I was wondering what you gentlemen would suggest I do. By this point, I am unclear if I need to adjust my macro count but use the same 45/35/20 ratio, if I should raise some but lower others, or what exactly. My overall goal here is to lose as much fat as possible (as we all desire) in an effort to run somewhat of a mock-competition prep just to see what I can achieve. The other goal of this is to bring my body fat to as low of a percentage as possible in order to prime myself for another bulking cycle I'm planning towards the latter half of summer or fall. I've done some research looking through other threads on here and gathered some ideas. I've also asked a friend of mine who competes but he advised me to intake 300g protein, 150g carb, and no more than 15g fat a day with 0 carbs on non-training days. So, I thought it was appropriate to ask the experts here for their advice.

Thank you all for taking the time to read this and I look forward to hearing your responses.
-CM