Loosing weight :/ loosing motivation 😡

This me at my biggest in a size 18 nearly a year ago, I was 19, and due to pcos just getting bigger, I then decided I needed to fight back.

This is now me a few months ago in a size 14 I then decided I needed to loose more and kick this problem I had

And now this is me a month ago.... it’s going down slowly but surely but the numbers on the scales have seemed to just stop, any tips to boost it.

I have a goal of wanting to loose 2 stone in the next 3 months. How would you guys do that? Xx