@Reubenz You're doing great!
If your weight loss is less than you hoped for, it can be a few things.
1. A simple issue of calories. Track them and adjust as needed
after also considering:
2. It's not really about weight if you are gaining muscle. Body measurements, usually the abdomen in men is the easiest indicator of this. Most men loose abdominal fat from the top down, so you might want to track measurements in several locations; eg. 2" above navel, @ navel, 2" below navel. If you have extra fat, don't worry about the scale if the fatty areas are shrinking!
3. "Wooshes" A good explanation, though I don't know of it's technical veracity, is that when you loose fat, sometimes the fat gets burned off, but the fat cell just replaces it with extra water and holds onto it for a while. You keep losing fat, but holding more water so the scale doesn't move as much as expected. Then a week or two later, "woosh" you drop a pound, or a kg overnight. Sometimes even 2 kg.
Now, for me, it takes a solid month of calorie and body measurement data to tell if I'm experiencing #2, #3, or if I really need to adjust my calories. Since you only have 6 weeks to go, I'd say to just stay the course. You have a solid plan and you're making progress. Keep it up and kudos!