Is my weight loss plan okay?

I don't really have a good support system and family members are rushing me to lose weight and it's just uncomfortable, so maybe the internet can be nicer and more realistic about weight loss. Primary reason for losing weight is because I'm also a diabetes suspect.

I'm a woman, 19, 5'2, first weighed at 99kg. I am on a calorie deficit of 1500cal/day and walk 10k almost daily, at least 5x a week if not. I'm still a student and don't have money for a gym membership

I've only started last month and I just recently weighed myself and it showed 95.7kg which I'm doubtful of. Is it really possible to lose that much in a month? I don't think I'm doing anything too extreme. Advice would be greatly appreciated!