7.5kg!! That is primo bro - and even cooler to hear you are working out how to fit the fasting in alongside quality of life. That's the biggest hurdle, if it sucks all the time you just make it so hard to become a habit.
I've mentioned it before but my snacking has dropped to zero with fasting. I eat dinner, and now try and eat it earlier, then it's easy to say no to snacks. I am loving having my 13 hour fast ending around 7.30-8am as I can easily push through to 9am or 10am and get those extra hours. It feels like hitting a bonus round and is really satisfying. Then I eat a sausage roll and feel even better ha ha
Some gym work would be a great addition, but as the weight loss is going great guns it'd be more useful for stress management, and to build more muscle so you're consuming more calories to maintain.
Fast, eat less or near a calorie deficit, work out/build muscle. WIN!!!