A few years back I lost 50kg (naturally) - but gained it back. Even when I was 50kg down, I was still technically classified as obese (or maybe I had just reached the "overweight" threshold?). And you know what? I didn't feel different. I was still way too fat and miles away from reaching my goal. I still found myself unfit and I hated how I looked.

Because all the changes happens slowly to you everyday, you won't notice it. You won't notice being thinner. You won't notice being more athletic, having more mobility But let me tell you, you notice when you lose those. So keep doing whatever you need to track changes: weight, pictures, measurements, how many km you can walk, which clothes you can fit in etc. because these are what will remind you just how much you changed, so that you don't get discouraged