How long should it take me to lose 5-7kg?

I'm a 16 year old girl, I'm 1.55m tall and my current weight is 52kg. I've weighed around this for ages, but I've finally decided I'd like to slim down especially with summer here. I recently lost 2kg in two weeks. Now I'm planning to stick to consistent exercise, this includes; jogging first thing in the morning for approximately an hour (equivalent to 7km) then sticking to eating three healthy meals with preferably no snacks in between. I may even include half an hour of dancing to fit in my day.

Rough meal plan options:

Breakfast - cup of plain yoghurt served with a piece of fruit/ whole meal toast with 1 poached egg (no butter btw) / 1 weetbix with milk

Lunch- salad/ whole meal bread with feta, avocado/ cruskits with cottage cheese/ sweet potato fries

Dinner- often depends what Mum cooks, though I could through around healthy alternatives