Great progress so far! Few questions. How long and how much tren/test have you been on and plan to continue for 3 MONTHS?
IMHO you are looking for the magic pill try clen, try GH, try eca, test tren .... etc etc..... Yep they help!
What is your TDEE? What is your method of tracking calories and macro's? There is no substitute for a good strict meal plan and sticking to it. Frequent small meals and hit your targets for macro's and calories.
Next is the cardio. I prefer fasted HIIT in the morning. I have posted this before. 5 minute warm up; 10 minutes of (15 seconds balls to the wall 45 second rest); 20 minutes steady state at about 70% max heart rate (220 - age x.7)
https://www.active.com/fitness/calculators/heartrate; then 5 minutes of (30 seconds hard 30 seconds easy); 5 minute cool down.
I do have some experience in this area. I went from 26% Bodyfat to 14% bodyfat in 6 months doing the above. Ohhh and one last thing that you ain't gonna like ... alcohol is wasted calories! LOL
I know you like to keep it simple. Do you have a PC that has microsoft office (excel) on it? If so I can help you. I have a spread sheet I made all you do is put in how many grams of P,F,C and it totals and graphs it against your target goal automatically. Of course I would have to set it up for your targets. (see pic for example).