Former user of this drug class here. Want you to know that the hunger you dealt with earlier wasn't just weak willpower. When weight drops through intense dieting, especially around 1,200 calories while managing PCOS and insulin resistance, your body can respond by amplifying hunger signals and shifting appetite hormones to restore balance. That's part of why keeping weight off proves so tough for some people.
Good news is you get to handle this differently this time around. Rather than spending these three months purely chasing a 10 kg loss, use the time to build habits that'll protect your progress once you stop, structuring meals around protein, preserving muscle, eating enough to actually fuel your body, and setting up routines resilient enough for a hectic schedule.
That said, with a newborn and travel back home ahead of you, go easy on yourself. You're already doing something meaningful by thinking about long-term maintenance before even hitting your goal. That mindset will serve you better than you realize. Please keep your fluids up. Wishing you all the best on this path.