Hello!! I’ve been in a calorie deficit and exercising since February so that’s 5 months now, and I only weigh myself once a month

From February to May I was very consistent with my deficit and exercising, and I lost around 9.5kg and gained a bit of muscles according to my inbody

In June, I was a bit inconsistent with my exercises, because it was finals months and I was often very mentally exhausted, I could walk every now and then but no exercises, I also had bit of a big surpluses for 4 days because of Eid, but thankfully because of the deficit i had other than those 4 days, I still lost 1.5kg

Now it has been 20 days since I weighed myself in June, I started to get back to normal exercising, I was feeling a bit down and I decided to weigh myself early, I only lost 100g? I was crushed, I don’t know why this happened :(

But yesterday I had a high sodium meal, it was instant noodles and sweet and sour fried chicken, not very healthy yes, but it was still under a deficit (it was all I ate for the whole day plus just a yogurt and a piece of watermelon), plus the days before were similar (in a deficit but not healthy) because of personal reasons, could it be the reason?

I don’t know why I’m overthinking it but I feel so down, I’m scared my metabolism somehow slowed down and that’s why? Because I don’t always eat healthy, the months before I also didn’t eat 100% clean, my diet you can say a mixture of everything, I don’t remember the details if I ate something like that before the weight day or not tho, but I know for example that in Ramadan we had a lot of desserts and fried food and I still lost weight :( is there something I did wrong? I wanna loose 6-8kg more :(